On the Revolt of 1857: One of Yadav's earliest contributions pertained to the 1857 mutiny and the struggle by the Indian Princely states as well as Indian "sepoys" against the rule of the East India Company. Punjab was traditionally considered to have a pacifist role in the struggle. Yadav presented an argument that stated otherwise. Citing evidence from the mutiny records relating to Ambala, Yadav argued that the revolt first broke out in Ambala, and not Meerut. In a letter that R. C. Majumdar wrote to Yadav, he said, "...the most important article is on the Mutiny at Ambala. That there was an open revolt of the sepoys there on the morning of 10 May, before the outbreak at Meerut, is, I must confess, a news to me and probably to many others. I congratulate you..." Yadav has further written on the role of Himachal Pradesh and Haryana. In 2008, Yadav was a speaker at the National Conference on the 1857 Revolt organised by Kurukshetra University and the Indian Council of Historical Research. He has also placed emphasis on the role of Rao Tula Ram.