In 2002, the Indian coalition government led by the Bharatiya Janata Party (BJP) changed the school textbooks for social sciences and history, on the ground that certain passages offended the sensibilities of some religious and caste groups. Romila Thapar, who was the author of the textbook on Ancient India for class VI, objected to the changes made without her permission that, for example, deleted passages on eating of beef in ancient times, and the formulation of the caste system. She questioned whether the changes were an, "attempt to replace mainstream history with a Hindutva version of history", with the view to use the resultant controversy as "election propaganda". Other historians and commentators, including Bipan Chandra, Sumit Sarkar, Irfan Habib, R.S. Sharma, Vir Sanghvi, Dileep Padgaonkar and Amartya Sen also protested the changes and published their objections in a compilation titled, "Communalisation of Education".