Which of the following is not a poisonous snake found in India?

India is home to only four poisonous snakes, sometimes referred to as the 'Big Four'. They are Russell's viper, Saw-scaled viper, Common Krait and Cobra. Three out of these four are present as options A, B and C. So the correct answer will be option D, none of the above. People sometimes don't recognise which snakes are poisonous from their appearances and end up killing plenty of harmless ones.