Former Prime Minister and Congress leader Manmohan Singh will be concluding his 33-year-long tenure in the Rajya Sabha in early April. This development coincides with Sonia Gandhi, former party chief, entering the Upper House of Parliament for the first time. Singh, renowned for implementing significant economic reforms, initially became a member of the House in October 1991. He served as the finance minister in the Narasimha Rao government from 1991 to 1996 and subsequently as the prime minister from 2004 to 2014.