<prompt> Polyvalent anti snake venom does not contain the venom ofNajaHypernaleEchis carinateDaboia Russel  <response>: The Indian antisnake venom neutralise the venom of 1. Common cobra Naja naja 2. Common krait Bungarus caeruleus 3. Russells viper Daboia russelii 4. Saw-scaled viper Echis carinatus 