[2][3] Nath taught at the Agra College and later at the University of Rajasthan in Jaipur where he was a Reader and associate professor in the Department of History and Indian Culture.
They asserted that they rejected the nationalist attempts to portray India's past as glorious golden age, but also condemned the "leftist" historians for promoting contempt of Indian civilisation.
Nath rejected the claims that Shah Jahan had forcibly acquired the land from Hindu king Jai Singh to build the monument, and that hands of 20,000 artisans involved in its construction were amputated.
[8] He also criticised the Hindu chauvinist theory that Taj Mahal was originally a Shiva temple, calling it "absolutely wrong and absurd".
[9] He stated that the Hindu nationalist characterisation of the Mughal era as "exploitative, barbaric and a period of incomparable intolerance" was completely wrong.