Malabar pit viper (brown morph)- mostly a snakelet.
They occur in many different colour morphs including colours such as yellow, green, and brown.
These snakes are slow-moving, but capable of fast strikes. Apparently, their venom causes moderate pain and swelling to humans. I am told, these symptoms subside in a day or two.
My first close encounter of this beauty in green morph and the experience, was shared in an earlier post (post).