Madhav Sadashiv Golwalkar
Madhav Sadashiv Golwalkar was the second Sarsanghchalak of the Rashtriya Swayamsevak Sangh. He has been widely noted to be the most prominent ideologue of Hindutva. One of the early leaders for the nationalist RSS group. Golwalkar authored the books Bunch of Thoughts and We, or Our Nationhood Defined.