Madhav Sadashiv Golwalkar (19 February 1906 – 5 June 1973), also known as Shri Guruji, was the second Sarsanghchalak (Supreme Leader) of the Rashtriya Swayamsevak Sangh. Golwalkar wrote Bunch of Thoughts, and We, or Our Nationhood Defined. which is considered a controversial book.Indian Prime Minister Narendra Modi has written a biographical profile of Golwalkar in his book "Jyotipunj"; Modi considers Golwalkar to be one of his inspirations.