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India's Deadly 'Big Four' Snakes Revealed
27 Apr
Summary
- Indian cobras, kraits, Russell's viper, and saw-scaled viper are the most dangerous.
- Venoms affect nervous, clotting, and tissue systems, causing paralysis or bleeding.
- Understanding snakes aids prevention and timely medical treatment.

India's diverse ecosystems host numerous snake species, many highly venomous and posing a public health concern, especially in rural areas. Understanding these species is key to managing risks.
The 'Big Four' – Indian cobra, common krait, Russell's viper, and saw-scaled viper – are responsible for most dangerous encounters. Their venoms work differently: neurotoxins attack the nervous system, while hemotoxins disrupt blood clotting and cause tissue damage.
Other notable venomous snakes include the formidable King Cobra, banded krait, hump-nosed pit viper, Malabar pit viper, Indian coral snake, and the Andaman cobra. While some, like the King Cobra, tend to avoid humans, their potent venom demands respect and caution.