Is the common house gecko poisonous to touch?
They are completely harmless. There are no poisonous lizards in India, and only one species of poisonous lizard in the world (Heloderma suspectum, from Mexico and SW U.S.). A gecko's skin is not toxic. They don't inflict a painful bite. The best way to hold a lizard without harming it is by the base of a hind leg.