Snakebite envenoming is a serious and life-threatening but neglected problem in the tropics. The focus Indian subcontinent usually on cobra (Naja naja), common krait (Bungarus caeruleus), Russell’s viper (Daboia russelii), saw-scaled (Echis carinatus). polyvalent antivenom contains hyperimmunized horse antibodies against only these 4 species. However, regional intraspecific variations are impor...