"Guidelines for rewriting history were prepared by the National Council of Educational Research and Training (NCERT)... The idea was 'to weed out undesirable textbooks (in History and languages) and remove matter which is prejudicial to national integration and unity and which does not promote social cohesion' ....The West Bengal Board of Secondary Education issued a notification dated 28 April 1989 addressed to schools and publishers suggesting some 'corrections' in the teaching and writing of 'Muslim rule in India' - like the real objective of Mahmud Ghaznavi's attack on Somnath, Aurangzeb's policy towards the Hindus, and so on. These guidelines specifically say: 'Muslim rule should not attract any criticism. Destruction of temples by Muslim invaders and rulers should not be mentioned.' One instruction in the West Bengal circular is that 'schools and publishers have been asked to ignore and delete mention of forcible conversions to Islam... This experiment with untruth was being attempted since the 30’s-40’s by Muslim and Communist historians. After Independence, they gradually gained strength in university departments. By its policy the Nehruvian state just permitted itself to be hijacked by the so-called progressive, secular and Marxist historians... Armed with money and instructions from the Ministry of Education, the National Council of Educational Research, University Grants Commission, Indian Council of Historical Research, secular and Stalinist historians began to produce manipulated and often manifestly false school and college text-books of history and social studies in the Union Territories and States of India. This has gone on for years. ..."