Puchhkad Riddle (Pocchey Laal Puchhkad)- 2

Puchhkad uncle is back with a new question now. Tell us who is the person shown in below picture. Na No.. he is not an ordinary citizen of India, in fact he is one such person who has devoted his whole life for the welfare of human beings and giving the same message to the whole world.

Tell us who is he. ??