Russell's Viper
Daboia russelii
Russell's Viper is the most widely distributed Viper family member which is infamous for its fascinating whistle and long fangs. This is one of the most bite and death causing venomous snake in Indian subcontinent and the member of Big Four of India. It can be easily identified by checking oval shaped hollow or solid spots in three rows in dorsal body and highly keeled non-shiny scales. However even with specific body patterns layman sometime assume it to be juvenile of Python.
Chain Viper