Historians today joined writers, filmmakers and scientists in growing protests against "climate of intolerance" over which top scientist P M Bhargava said he will return his Padma Bhushan award.<br/><br/>As a second group of scientists joined the wave of protests by the intelligentsia, 53 historians including Romila Thapar, Irfan Habib, K N Pannikar and Mridula Mukherjee criticised Prime Minister Narendra Modi for not making any "reassuring statement" following concerns over "highly vitiated atmosphere" prevailing in the country.<br/><br/>The statement by historians said referring to Dadri lynching incident and the ink attack on Sudheendra Kulkarni during a book launch function in Mumbai, that differences of opinion are being sought to be settled by using physical violence.<br/>The statement said, arguments are met not with counter arguments but with bullets.<br/><br/>They said, this was particularly worrying for historians who have already experienced attempts to ban their books and expunge statements of history despite the fact that they were supported by sources and the interpretation is transparent.<br/><br/>The statement urged the state to ensure an atmosphere that is "conducive to free and fearless expression, security for all sections of society and the safe-guarding of the values and traditions of plurality that India had always cherished in the past."<br/><br/>Union Minister Arun Jaitley, however, hit back at those returning awards, saying they were "rabid anti-BJP elements" and called it a "manufactured rebellion".<br/><br/>Jaitley said in Patna that their stances on various social and political issues show a lot of rabid anti-BJP elements in them.