Write the sentence each about the role played by the following people with reference to Office Memorandum No 36012/31/90. 1. Joint Secretary 2. B. P. Mandal 3. V.P. Singh 4. Indira Sawhney.
1. Joint Secretary: The officer who signed OM No. 36012/31/90. 2. BP Mandal: The person who had headed the Second Backward Classes Commission. 3. V. P. Singh: The Prime Minister when OM 36012/31/90 was issued. 4. Indira Sawhney: One who filed a case against the Union of India in the Supreme Court relating to the Mandal Commission recommendations.