New Delhi, Mar 1 : The Prime Minister Dr. Manmohan Singh on Sunday underwent tests as part of a planned post-operative assessment at All India Institute of Medical Sciences (AIIMS).

His results were stated to be `quite satisfactory'.

"The Prime Minister went to AIIMS to undergo tests as part of a planned post-operative assessment. Preliminary test results are quite satisfactory," a PMO spokesperson said.

According to hospital officials, Dr. Singh came at about 12.15 PM and left within 15 minutes.

Dr. Singh underwent a multiple bypass surgery at the AIIMS on January 24 to remove five arterial blockages. He had recently suffered from a bout of common cold and slight fever.

Doctors attending to him said the Prime Minister is making steady progress. (ANI)