Sreedharan took over the office in 1995 and became the Managing Director of Delhi Metro.
A panel consisting of Union Urban Development Secretary Sudhir Krishna, Delhi chief secretary PK Tripathi and outgoing DMRC chief Sreedharan selected Mangu Singh as the new Metro chief.
Since its origin, Singh has been associated with the Delhi Metro and served as an officer with the Indian Railways Service of Engineers.
Delhi Metro has undertaken the responsibility of planning the commuter systems in Mumbai, Chennai, Hyderabad, Kolkata, Ahmedabad and Kochi.
"It is not right to compare the new person with Sreedharan or comment on him... We are confident he is capable as he has been picked up by a committee. He will definitely be able to do well,"said Delhi Chief Minister Sheila Dikshit.
"Singh, 56, a civil engineer from Roorkee University, will assume charge as the new DMRC chief tomorrow (Saturday)," a DMRC spokesman said.