NTPC Limited announced that based on achievement of approved norms and due approvals, 2nd Unit of 800 MW capacity of Darlipali Super Thermal Power Project, (2 x 800 MW) has successfully completed trial operation and consequently included in the installed capacity of NTPC. With this, the total installed capacity of NTPC and NTPC group has become 53,450 MW and 66,875 MW respectively.