Venomous Snakes in India: Big Four & Snakebite Safety

Learn India's big four venomous snakes, how to keep snakes away from your home, and WHO first aid advice for snakebite. Practical safety steps with FAQs.

If someone may have been bitten by a snake, arrange transport to a health facility immediately. Do not wait to identify the snake or try a home remedy. Keep the person still while help is arranged.

For households, the useful questions are how to reduce encounters, what to do when a snake enters a room, and how to help a bitten person without delaying treatment. The medical first-aid section follows World Health Organization (WHO) guidance. Household sections combine WHO prevention recommendations with practical precautions, identified below. This is general safety information, not a substitute for emergency medical care.

Quick answer

The big four are not a complete list. Other species also cause life-threatening bites in India.

Do not approach, catch or kill a snake. Move away and keep others away.

At home: clear rubbish and old building materials, keep grass short, seal gaps, use a light at night, and sleep on a raised bed under a well-tucked mosquito net where snakes may enter.

If bitten: move away, remove tight items, keep the person still and calm, and get them to a hospital as fast as possible. Do not cut the wound, suck it or tie a tight tourniquet.

India's big four venomous snakes

WHO's 2019 questions and answers names India's "big four":

Indian cobra (*Naja naja*)

Russell's viper (*Daboia russelii*)

Indian saw-scaled viper (*Echis carinatus*)

Common krait (*Bungarus caeruleus*)

This is a public-health grouping, not a ranking of venom strength or a checklist for deciding whether a bite is safe. WHO notes that the species responsible for serious bites vary by region and that other species cause life-threatening bites too. Do not approach a snake to check its markings or look for a hood. Leave identification and handling to trained rescuers; a suspected bite needs medical assessment regardless of which species you think it was.

Where bites happen and who is at risk

WHO identifies agricultural workers and people whose homes allow snakes to enter as high-risk groups. Its prevention guidance highlights walking barefoot, hidden snakes in rubbish or construction materials, and walking outside in the dark. For a household with an outdoor toilet, an unlit path or building debris beside the house, these are practical places to start reducing encounters.

What the death estimates actually mean

The figures often quoted for India come from different studies and periods:

45,900 deaths in 2005: Mohapatra and colleagues, published in PLOS Neglected Tropical Diseases on 12 April 2011, used a nationally representative mortality survey from 2001–2003 and applied the snakebite mortality proportion to India's estimated total deaths in 2005. The 99% confidence interval was 40,900–50,900. WHO's 2019 Q&A quotes a rounded figure of 46,000.

An average of 58,000 deaths per year during 2000–2019: Suraweera and colleagues, published in eLife on 7 July 2020, estimated about 1.2 million snakebite deaths in India over those two decades. The analysis used Million Death Study records from 2001–2014 and extrapolated outside that period.

Both are estimates, not complete counts of recorded deaths. Neither is a verified annual total for 2026, and their difference should not be read as a measured rise between two current yearly counts. The practical message is the same: a suspected bite needs prompt medical care.

How to keep snakes away from your home

WHO recommends reducing shelter, blocking entry, using lighting and wearing protective footwear. The checklist below applies those recommendations to household situations; details such as keeping a torch within reach and preserving drainage when fitting covers are practical precautions, not quoted WHO medical instructions. These measures reduce risk but do not guarantee a snake-free home.

Clear shelter near the house: remove piles of rubbish, old bricks, timber and construction debris, and keep grass short near the house, along paths and where children play. Look before reaching into stored materials; if you see a snake, stop and move away rather than shifting the pile yourself.

Seal entry points: check gaps under doors and around pipes, and ask for repairs where openings cannot be closed safely. Do not block a drain or ventilation opening; ask for a suitable cover or screen that preserves its function. Our rodent-proofing guide covers household gap checks too.

Light your night-time route: keep a working torch within reach for walks to an outdoor toilet or across a dark compound, use it when walking outside after dark, and switch on a light before moving around indoors. Combine lighting with protective footwear rather than trying to recognise a snake after stepping close to it.

Sleep off the floor: where snakes can enter, WHO says sleeping on a raised platform with a well-tucked mosquito net helps prevent both mosquito-borne disease and snakebite. Our dengue mosquito control guide covers other mosquito precautions.

Wear footwear outdoors: WHO notes that many bites below the knee could be prevented with practical, protective footwear.

If you see a snake at home

These are practical distance-and-access precautions while you seek local handling advice, not WHO medical first-aid instructions. If anyone may have been bitten, follow the medical guidance in the next section and arrange hospital care immediately.

Stay calm and keep a safe distance. Move children and pets away.

Do not try to catch, corner or kill it, or move furniture to flush it out.

Leave the room. Close the door only if you can do so without going near the snake; do not stay inside to watch it. Keep others out and tell the rescuer where it was last seen.

Contact a trained snake rescuer or your local forest department for handling advice. Do not assume an ordinary household pest treatment is a substitute for trained snake handling.

First aid for snakebite: what WHO advises

WHO's treatment guidance says suspected venomous bites need transport to a health facility without delay. Begin arranging transport while another person helps the patient, if someone else is available.

Move away from the area where the bite happened.

Remove anything tight, such as rings, bangles or anklets, from around the bitten part in case it swells.

Reassure the person and keep both the person and bitten limb as still as possible. WHO advises immobilising the limb with a splint and carrying the person on a makeshift stretcher to transport, rather than having them walk. Do not delay transport to assemble equipment.

During transport, WHO advises keeping the person on their left side with the mouth turned down to reduce the risk of airway obstruction from vomit. Watch their airway and breathing closely; follow emergency-service instructions if breathing becomes abnormal or stops.

Do not cut or suck the wound, apply a tight tourniquet, use chemicals or herbal preparations, or visit a healer instead of seeking medical care.

Do not improvise a pressure bandage. WHO restricts pressure-immobilisation bandaging to particular types of bites and warns that it is not appropriate for snakes whose venom causes significant local tissue damage. It is not a general instruction for an unidentified snakebite in India. Follow trained emergency responders' guidance rather than wrapping the limb tightly.

Antivenom is the specific treatment that can prevent or reverse many venom effects when clinically indicated and given by trained health professionals. It is not the whole of snakebite care: WHO also describes breathing support, circulation monitoring and other treatment. The decision about antivenom belongs to the treating team, not to someone identifying a snake from a list.

When to ask for professional help

For repeated sightings or entry gaps you cannot repair yourself, ask about a property inspection and prevention work through our snake control service. Confirm who will handle a snake, what training they have and which local authority's instructions they follow. Do not handle or relocate it yourself. A pest-control booking is not an emergency medical response: if anyone may have been bitten, arrange hospital care first.

Frequently asked questions

Which is the most venomous snake in India?

The WHO sources cited here do not name a single "most venomous" species. A venom ranking would not tell a family whether a particular bite is safe. The big four and other species can cause life-threatening bites; do not wait for identification before getting medical help.

What are the 5 poisonous snakes in India?

The appropriate term for snakes that inject venom through a bite is venomous. WHO names the big four but explicitly says other species also cause life-threatening bites in India; it does not give a definitive five-species safety list. Do not dismiss a suspected bite because the snake did not look like one of the big four.

Should I tie a cloth tightly above a snakebite?

No. WHO warns that narrow tourniquets are dangerous and ineffective. Remove tight items, keep the person still and get them to a hospital quickly.

Can I identify a snake from its colour?

Do not approach a snake to inspect its colour or markings. If someone is bitten, do not delay transport to take a photograph, capture the snake or search online for a match. Let the medical team assess the patient.

How do I stop snakes entering my house?

Start with entry gaps under doors and around pipes, then remove nearby rubbish and construction debris. Preserve drainage and ventilation when fitting covers. Where entry cannot be prevented, WHO recommends a raised sleeping platform with a well-tucked mosquito net; this is a precaution, not a substitute for repairing the home.

Should I wait for symptoms before going to hospital?

No. WHO advises transport without delay after a suspected venomous bite. Do not wait at home to see whether swelling or other symptoms appear. Keep the person still and seek assessment at a health facility.

Do home remedies like phenyl, salt or garlic keep snakes away?

The WHO sources cited here do not recommend these as prevention measures. Do not rely on them in place of clearing shelter, sealing entry gaps, using lights and wearing protective footwear. Never pour a substance on a snake or use it to drive one out of hiding.

Sources

World Health Organization — Snakebite envenoming: questions and answers (20 November 2019): India's big four, risk groups, household prevention, harmful first aid and restrictions on pressure bandaging.

World Health Organization — Snakebite (health topic): first aid steps and antivenom.

World Health Organization — Snakebite envenoming: treatment: transport, immobilisation, left-side positioning, airway and breathing, antivenom and supportive care.

Mohapatra et al. — Snakebite Mortality in India: A Nationally Representative Mortality Survey (PLOS Neglected Tropical Diseases, 12 April 2011): the original estimate of 45,900 deaths in 2005.

Suraweera et al. — Trends in snakebite deaths in India from 2000 to 2019 in a nationally representative mortality study (eLife, 7 July 2020): the original two-decade estimate averaging 58,000 deaths per year.

Venomous Snakes in India: The Big Four and How to Stay Safe at Home