Manmohan Singh, in a wheelchair, attends RS

Former Prime Minister Manmohan Singh attended Rajya Sabha proceedings in a wheelchair.

Singh, who was prime minister for 10 years between 2004 and 2014, was wheeled into the House just before it assembled.

The 90-year-old frail-looking Singh sat quietly for exactly an hour, listening to Leader of the House and Union Minister Piyush Goyal and Leader of the Opposition and Congress president M Mallikarjun Kharge speak on a discussion on 75 years of parliamentary journey.

Congress MPs, including former Union finance minister P Chidambaram, greeted Singh with folded hands as they passed by.