Rule under Akbar/Shahjahan was fair, Babur, Aurangzeb were obviously bigots who oppressed people.
But please Taj Mahal was a hindu temple !!! Wasn't this cooky theory put forward by this guy :
Purushottam Nagesh Oak
Purushottam Nagesh Oak (March 2, 1917 - December 4, 2007), commonly referred to as P. N. Oak, was an Indian writer, notable for his historical revisionism. Oak's "Institute for Rewriting Indian History" issued a quarterly periodical called Itihas Patrika in the 1980s.
Oak's claims, e.g. that Christianity and Islam are both derivatives of Hinduism, or that the Kaaba and the Taj Mahal were once Hindu temples to Shiva,[1] and their reception in Indian popular culture have been noted by observers of contemporary Indian society, who variously characterized Oak as a "mythistorian"[2] or more directly as a "crackpot".[3].