Sahni was born on 9 August 1916 in
Lahore, British India to Lala Gurdas Ram Sahni an agricultural land holder with substantial land holdings. He was the oldest of three children of Lala Gurdas Ram sahni from his second wife who died within a month of giving birth to his sister, Nando (Nand Rani), eight years younger to him in 1924. P. N. Sahni completed a double Master of Arts degree in political Science as well as History from Government College at Lahore now known as the
Government College University (Lahore). He was an enthusiastic hockey player in college and this interest in sports lasted with him through life. Subsequent to college studies in Lahore, he proceeded for doctoral studies in UK but the program was interrupted because of the second world war. == Provincial Transport Controller ==