Diwali Fireworks and Pets in India: What the Noise Does and How to Prepare

Reviewed and updated on 4 September 2026. The legal position on firecracker noise is currently before the Supreme Court and is expected to change before Diwali. See What does Indian law actually permit for the current state and the dates to watch.

It is nine in the evening on Diwali night. The lamps are lit, the sweets are out, and somewhere two floors below a sutli bomb goes off. Your dog, who was asleep on the sofa an hour ago, is now wedged behind the washing machine and will not come out. He is panting. His pupils are wide. He has not touched food since sunset.

If this is familiar, you are not imagining it and you are not alone. Fear of fireworks is the single most common anxiety problem documented in pet dogs anywhere it has been studied. What follows is what the evidence actually says, with every number carrying its source and year, and an honest note about where that evidence comes from.

One thing to say plainly at the start: there is no Indian study of how common firework fear is in Indian pets. Not one. We checked again in September 2026 and this remains true. Almost every figure below comes from Finland, the UK, Norway, Switzerland or New Zealand. We have said so each time it matters, because presenting foreign data as Indian data is how a page stops being worth trusting.

When is Diwali 2026, and how long is the noise?

Diwali 2026 falls on Sunday 8 November, with the five day festival running from Dhanteras on Friday 6 November to Bhai Dooj on Tuesday 10 November. In practice the bursting starts earlier and continues later than the calendar suggests.

Fireworks in India are not a one night problem. Kali Puja falls on the same night in Bengal. Chhath Puja brings early morning bursting about six days later. Wedding season runs roughly November to February and again April to June, with fireworks and drums at unpredictable hours. New Year's Eve, Ganesh visarjan processions and Gurpurab all add their own nights. A pet who is frightened of loud noise is dealing with a season, not a date.

How loud do Indian firecrackers actually get?

Indian law caps a single firecracker at 125 dB(AI) or 145 dB(C) measured four metres from the point of bursting, under the CPCB firecracker noise standard notified in 1999. Joined or series crackers, the laris, must be quieter still by a formula that scales with how many are joined together.

That 1999 standard is currently under review. In July and August 2026 the Supreme Court asked the Central Pollution Control Board to examine whether a partial relaxation of the noise limits is possible for certain categories of firecracker. No order changing the limit has been passed. The detail is in the next section, and it is the part of this page most likely to be out of date by the time you read it.

What gets measured on the night is a different story, because hundreds of crackers going off across a colony create a sustained wall of sound rather than one bang.

Where	Diwali night reading	Source and year
Delhi, across 31 monitored areas	58 to 88.7 dB(A)	DPCC data reported in Business Standard, 2024
Kolkata, Kasba	about 104.6 dB average on the festival night	IANS agency report, 2024
Bengaluru, Sarjapur	84.6 dB	KSPCB data reported in Deccan Herald, 2022
Tamil Nadu, residential study site	rose from 57.71 to 75.5 dB(A)	Shankar et al., E3S Web of Conferences, 2023
Legal limit, residential zone at night	45 dB(A)	Noise Pollution Rules, 2000

The last row is the one worth sitting with. The night time legal ceiling for a residential area is 45 dB(A). Delhi's quietest monitored spot on Diwali night 2024 was already above it, and the loudest was roughly forty decibels over.

One honest caveat: the Kolkata figure comes from an agency news report rather than a published pollution board table, so treat city numbers as indicative rather than exact. CPCB and the state boards publish station level Diwali monitoring reports each year, and those are the authoritative record.

What does Indian law actually permit, and when?

The operative rules come from the Supreme Court's judgment in Arjun Gopal v Union of India, delivered on 23 October 2018. It banned barium salt and non certified crackers, permitted only green crackers certified through CSIR NEERI, banned online sale, and restricted bursting to 8 pm to 10 pm on Diwali, with 11.55 pm to 12.30 am on Christmas and New Year.

States vary the windows. Tamil Nadu uses 6 am to 7 am and 7 pm to 8 pm. Chhath Puja gets a 6 am to 8 am window. West Bengal fixes similar slots for Kali Puja. Check your own state's notification each year rather than assuming the national default.

Green crackers are defined by CSIR NEERI as achieving at least a 30 per cent reduction in particulate matter and at least a 20 per cent reduction in gases released on bursting, compared with conventional crackers. Note what that definition covers and what it does not. It is an emissions standard, not a noise standard. A green cracker is not a quiet cracker.

Where things stand as of 4 September 2026

This is the volatile part of the page, and the reason it carries a date on every line.

The Delhi NCR position moved repeatedly through 2025. A complete NCR ban including green crackers was in force following an order of 3 April 2025. On 15 October 2025 the Supreme Court temporarily relaxed it, permitting sale of NEERI listed green crackers from 18 to 20 October 2025 and bursting from 6 am to 7 am and 8 pm to 10 pm on the day before and the day of Diwali, on a trial basis with pollution monitoring attached.

In 2026 the litigation turned to noise rather than emissions. The sequence, all in Arjun Gopal v Union of India before a bench of Justices M M Sundresh and P B Varale:

• 22 July 2026 — the Court asked the Additional Solicitor General to obtain instructions from CPCB on whether any partial relaxation on noise might be possible.
• 5 August 2026 — the Court directed that CPCB examine whether "a partial relaxation with respect to certain types of crackers may be possible, with specific reference to noise", and listed the matter for 19 August 2026 (LiveLaw, 5 August 2026).
• Around 20 August 2026 — the matter was adjourned for roughly two weeks with no decision announced. Justice Sundresh is reported as saying "Please give some exception; we don't want to rush it up just before Diwali", indicating the Court wants the question settled well ahead of the festival rather than at the last moment (The Wire, 20 August 2026).

As of 4 September 2026, no order has been passed changing the 125 dB(AI) limit, and that standard remains in force. Green crackers remain permitted for sale and restricted bursting in Delhi NCR. A decision is expected before Diwali on 8 November.

For a pet owner, the practical reading is this. If the noise limit is relaxed for some categories of cracker, the sound your animal is exposed to may be louder than in 2025, not quieter, whatever happens to the emissions rules. Prepare on that assumption. Verify the current order in the last week of October rather than relying on this paragraph, and check your own state's notification, since state windows are set separately from the NCR proceedings.

Why is it so much worse for dogs and cats than for us?

Because they hear far more of the sound than you do, and they cannot make sense of it. A dog's hearing runs roughly 67 Hz to 45,000 Hz against a human range of about 20 Hz to 20,000 Hz, and dogs are most sensitive around 4 to 10 kHz, according to audiology work summarised by Dr George Strain at the LSU School of Veterinary Medicine. Cats go further still, up to somewhere around 64,000 Hz.

So a firecracker that registers as a loud bang to you carries frequencies and intensities your dog is hearing at full strength. Add roughly eighteen muscles in each canine ear that let them pinpoint exactly where a sound came from, and every explosion is not just loud but precisely located and unavoidable.

The other half of the problem is predictability. Fear research consistently finds that sudden, loud, unpredictable and uncontrollable noise produces the strongest fear responses, precisely because nothing in the animal's experience lets them anticipate the next one or escape it. You know the crackers stop by eleven. Your dog has no way of knowing that.

All of the hearing science above is from foreign veterinary audiology sources. There is no India specific dataset on this.

How common is firework fear, and does it get worse every year?

It is very common, and yes, it tends to worsen with age. The largest study, of 13,715 dogs across 264 breeds, found 32 per cent were highly fearful of at least one noise, with fear of fireworks the most common single fear at 26 per cent (Salonen et al., Scientific Reports, 2020). That is roughly one dog in four.

Owners systematically miss it. A UK study found nearly half of owners reported at least one fear behaviour in response to noise, yet only about a quarter had ever described their dog as fearful (Blackwell, Bradshaw and Casey, Applied Animal Behaviour Science, 2013). The behaviour is visible; the label is not applied.

Fear also compounds. The odds of noise fear rose by about 3.4 per cent for every additional year of a dog's age in a Norwegian study of over 5,000 dogs (Storengen and Lingaas, Applied Animal Behaviour Science, 2015). This is the mechanism behind the thing owners describe every year: the dog who was mildly bothered at two is hiding at five and shaking at eight. Each unmanaged Diwali makes the next one harder.

A dog who suddenly develops noise fear after about six years of age, having been fine before, is worth a veterinary check rather than a behavioural one. New onset fear in an older animal can point to pain or cognitive change.

What actually works, according to the research?

Behavioural work and, for severe cases, vet prescribed medication have the strongest evidence. Products marketed as calming aids largely do not perform above placebo in field data.

The most useful single dataset is a survey of over a thousand owners of firework fearful dogs, published by Stefanie Riemer in the Journal of Veterinary Behavior in 2020, reporting how effective each approach was in practice.

Approach	Owner reported effectiveness
Ad hoc counterconditioning	about 71 per cent
Relaxation training	about 69 per cent
Vet prescribed medication	about 69 per cent
Noise recordings and desensitisation	about 55 per cent
Pressure wraps	about 44 per cent
Pheromones, herbal, homeopathic and similar	27 to 35 per cent

Riemer's own conclusion about that last row is that the results were not higher than would be expected from a placebo effect. Source: Riemer, Journal of Veterinary Behavior, 2020.

Ad hoc counterconditioning is simpler than it sounds. Every time a bang happens, something good immediately follows from you: a piece of chicken, a cheerful voice, a game. You are not rewarding the fear, you are building an association between the sound and something the animal likes. The same study found that doing this preventively, before a dog has developed a fear, appears highly effective at stopping the fear forming at all.

There is a genuine disagreement in the literature worth printing here. Pheromone products performed at placebo level in Riemer's field survey, but a placebo controlled trial by Landsberg and colleagues published in Veterinary Record in 2015 found that a pheromone collar did reduce active fear behaviours in dogs exposed to thunderstorm recordings, and a systematic review rated the evidence for thunderstorm related fear as moderate. Both findings are real. A reasonable reading is that pheromones are low risk and may help some animals, and are not a substitute for the behavioural work.

A second disagreement: a New Zealand study found that owners who comforted an already frightened animal saw fear severity and duration increase over time (Dale et al., New Zealand Veterinary Journal, 2010). That is not an argument for ignoring a terrified dog. The distinction is between anxious fussing that confirms something is wrong, and calm, matter of fact reward giving that builds a positive association. If your presence visibly settles your dog, stay.

How do you build a safe room in an Indian flat?

Pick the most interior room you have and make it boring, dark and covered. In most Indian flats the best option is a bathroom or a bedroom with no external wall, because masonry construction is genuinely good at blocking sound and every wall between your pet and the street helps.

Close the windows and draw heavy curtains. Pile soft things in the room, since mattresses, blankets and cushions absorb reflected sound and make the space feel less exposed. Give a covered hiding spot, a crate with a blanket over it or the gap under a bed, and leave it accessible. Run something that masks sudden bangs: a fan, an air conditioner, a television, steady music. Masking works better than silence because it flattens the contrast between quiet and explosion.

Set this room up two weeks early and feed your pet in it, so that by Diwali it is already the good room rather than the room they got shut into on the worst night of the year.

If your pet chooses somewhere else, behind the washing machine, under the bed, inside a cupboard, let them. Never pull a frightened animal out of a hiding place. Hiding is a coping strategy, not a problem to be solved.

What should you do in the fortnight before Diwali?

Prepare early, because the evidence is clear that preparation outperforms anything done on the night itself. Working back from 8 November 2026, that fortnight begins around 25 October.

• Set up and normalise the safe room now, not on 8 November.
• Start ad hoc counterconditioning with any loud sound that happens naturally, so the pattern is established before the real thing.
• Talk to your vet now if last year was bad. Consultations are harder to get during the festival week, and anything prescribed usually needs a trial run beforehand.
• Update your pet's ID tag and take a fresh, clear photograph.
• Walk your dog earlier in the day for the whole festival week. Bursting begins well before the legal window.
• Feed the main meal before dusk, since a frightened animal may refuse food entirely once the noise starts.
• Tell your house help and family that doors and gates stay shut and windows stay latched.
• Check the current Supreme Court position and your state's notification in the last week of October, since the noise rules for 2026 were still unsettled at the time of writing.

Is sedation the same as calming a frightened pet?

No, and the difference matters enormously. Sedation reduces movement. Anxiolysis reduces fear. A drug that does the first without the second leaves an animal fully terrified and unable to act on it.

This is why veterinary behaviour bodies now advise against using the older sedative class alone for noise fear. The European Society of Veterinary Clinical Ethology's position statement on acepromazine notes it has no anxiolytic properties and should not be used on its own for this purpose. The animal looks calmer to you. Inside, nothing has improved, and there is reason to think repeated experiences of that kind make the phobia worse.

We are deliberately not naming any medication as a recommendation, and there is no dose in this article. What is worth knowing before you speak to your vet: the two drugs licensed specifically for firework fear in dogs elsewhere in the world, an oromucosal gel and an anti seizure derived option, do not appear to be registered or commercially available in India, so Indian vets work with other tools. Take the conversation to your own vet, ideally weeks in advance, and tell them exactly what your pet did last year.

What about cats? They seem fine.

They are frequently not fine, and their fear is much easier to miss. Dogs pace, pant, vocalise and try to escape. Cats hide, freeze and go still, which reads to a human eye as coping.

In the New Zealand study of owner reported fear, 85 per cent of frightened cats hid, 46 per cent ran away and 40 per cent trembled (Dale et al., 2010). The PDSA's PAW Report in 2022 found 30 per cent of UK cat owners said their cat was afraid of fireworks, and PDSA itself described that as likely to be an underestimate precisely because cats conceal fear so well.

For a cat, the practical version of all of the above is: multiple covered hiding places at different heights, litter tray, water and food all inside the safe room, and every window, balcony door and grill shut before dusk. A panicking cat in a high rise flat is a serious risk.

The honest position: cat specific research on noise fear is much thinner than dog research. Most of what is advised for cats is extrapolated from dog studies and clinical experience.

Why do so many pets go missing at Diwali?

Because a frightened animal bolts, and a gate opened for guests is all it takes. Indian rescue groups document the spike every year. After Diwali 2025 in Bengaluru, the CJ Memorial Trust reported that roughly half the animals reported missing to them were never traced, and a volunteer WhatsApp group was tracking around 400 missing dogs (Deccan Herald, 2025). In Mumbai in 2024, RAWW reported 60 helpline calls and 33 animals rescued in 48 hours, distressed or injured by firecrackers and heat, some hurt badly enough to need lifetime care (PTI, 2024).

Practical measures, in order of usefulness: a collar with a legible ID tag carrying your phone number, a microchip if you can arrange one, a current photograph on your phone, and your local animal helpline number saved before the festival rather than during it. India has no national pet registration system, so a tag and a neighbourhood WhatsApp group are genuinely the front line.

If a dog does bolt, search away from the noise first. Frightened dogs run in the direction of quiet and then stop, so the search radius is usually smaller than panic suggests.

It is also worth knowing that Section 11 of the Prevention of Cruelty to Animals Act, 1960 makes it an offence to cause unnecessary pain or suffering to any animal, which covers deliberately directing firecrackers at animals. Penalties under the original Act are extremely low, and proposals to raise them have been discussed without settled outcome.

When should you take your pet to a vet immediately?

Go now, not in the morning, if you see any of the following after a noise event.

• Self injury from escape attempts: torn nails, bleeding paws, damaged teeth or gums from chewing at doors, cuts from jumping through a window or grill
• Tremors that do not stop once the noise has ended
• Signs of overheating from sustained panic, particularly in flat faced breeds
• Collapse, difficulty breathing, or anything resembling a seizure
• Refusal of food and water continuing well past the night
• Any injury after bolting, including from traffic

Quick answers

What date is Diwali 2026? Sunday 8 November 2026, with the five day festival running from 6 to 10 November. Expect firecracker noise for several days on either side, and again through wedding season and New Year.

How loud are Diwali firecrackers in dB? Indian law caps a single cracker at 125 dB(AI) at four metres, a 1999 standard that remains in force but is under Supreme Court review as of September 2026. Measured ambient levels on Diwali night reached 58 to 88.7 dB(A) across Delhi in 2024 and about 104.6 dB in one Kolkata location. The residential night time limit is 45 dB(A).

Are firecracker noise limits being relaxed for Diwali 2026? Possibly. In July and August 2026 the Supreme Court asked the Central Pollution Control Board to examine a partial relaxation of the noise limits for certain categories of cracker. As of 4 September 2026 no order had been passed and the 125 dB(AI) limit still applied. Check the current position in late October.

What time are firecrackers allowed in India? Generally 8 pm to 10 pm on Diwali under the Supreme Court's 2018 order, with state variations. Tamil Nadu uses 6 to 7 am and 7 to 8 pm. Delhi NCR has had its own separate and repeatedly changing regime, so check the current order.

Are firecrackers allowed in Delhi NCR for Diwali 2026? Green crackers certified by CSIR NEERI are permitted for sale and restricted bursting, following the Supreme Court's relaxation of the total ban in October 2025. The precise dates and hours are set each year, so verify before the festival.

Can dogs hear fireworks better than humans? Yes. Dogs hear roughly 67 Hz to 45,000 Hz against a human 20 Hz to 20,000 Hz, and cats hear higher still. They also localise sound precisely, so each bang is loud, placed and unpredictable.

How common is firework fear in dogs? About 26 per cent of dogs were highly fearful of fireworks in a study of 13,715 dogs in Finland, 2020. No comparable Indian study exists, as of September 2026.

Does firework fear get worse with age? Yes. The odds of noise fear rose about 3.4 per cent per year of age in a Norwegian study of over 5,000 dogs, 2015.

What is the most effective thing I can do? Start two weeks early: build a safe room, and reward your pet immediately after every loud sound. Those two approaches, ad hoc counterconditioning and relaxation training, scored around 71 and 69 per cent effectiveness in a 2020 survey of owners of firework fearful dogs.

Should I give my pet a sedative? Only on veterinary advice, and understand that sedation and fear reduction are not the same thing. A drug that immobilises without reducing anxiety leaves a frightened animal unable to respond. Speak to your vet weeks before Diwali, not on the night.

Are cats scared of fireworks too? Yes, and it is easily missed because they hide rather than pace. 85 per cent of frightened cats hid in one 2010 study, and 30 per cent of UK cat owners reported firework fear in 2022, a figure the researchers considered an underestimate.

Sources

• CPCB, Noise Standards for Firecrackers, GSR 682(E), 1999
• Noise Pollution (Regulation and Control) Rules, Ministry of Environment and Forests, 2000
• Supreme Court of India, Arjun Gopal v Union of India, judgment 23 October 2018; NCR order 3 April 2025; relaxation order 15 October 2025; proceedings on noise limits 22 July, 5 August and 19 August 2026
• LiveLaw, report of the Supreme Court's direction to CPCB on partial noise relaxation, 5 August 2026
• The Wire, report on the Supreme Court urging CPCB to consider relaxing firecracker restrictions, 20 August 2026
• CSIR NEERI green cracker specification, 2019
• DPCC Diwali noise data, reported in Business Standard, 2024
• KSPCB Diwali noise data, reported in Deccan Herald, 2022
• Shankar S. et al., E3S Web of Conferences 453:01004, 2023
• Strain G.M., LSU School of Veterinary Medicine, hearing range reference
• Salonen M. et al., Scientific Reports 10:2962, 2020
• Blackwell E., Bradshaw J. and Casey R., Applied Animal Behaviour Science 145:15 to 25, 2013
• Storengen L. and Lingaas F., Applied Animal Behaviour Science 171:152 to 160, 2015
• Riemer S., Journal of Veterinary Behavior 37:61 to 70, 2020; Animals 13(23):3664, 2023
• Landsberg G. et al., Veterinary Record 177:260, 2015
• Dale A. et al., New Zealand Veterinary Journal, 2010
• PDSA Animal Wellbeing (PAW) Report, 2022
• ESVCE Position Statement on the use of acepromazine, 2022
• Deccan Herald, Bengaluru missing animals report, 2025; PTI, RAWW Mumbai rescues, 2024
• Prevention of Cruelty to Animals Act, 1960, Section 11

A note from us

TailSetter makes accessories for dogs and cats in India. We are not veterinarians, and nothing here replaces advice from the vet who knows your animal. We wrote this because Indian pet parents face a firework season that no foreign guide is written for, and because most of what circulates each October is advice with no evidence attached to it.

If you spot an error, or if you are an Indian vet who can tell us where this is wrong, please write to us. We would rather correct it than defend it.

Review history. Published 14 August 2026. Reviewed on 4 September 2026, as this page promised: we re-checked the Delhi NCR firecracker position, added the 2026 Supreme Court proceedings on noise limits, and confirmed that no Indian study of firework fear in Indian pets has been published. Next review: last week of October 2026, before Diwali on 8 November, to record whatever the Supreme Court decides on the noise standard.

Related reading: Air Pollution and Your Pet in India: What the AQI Actually Means for Dogs and Cats, which covers the other half of the Diwali problem, since the smoke arrives with the noise.