apspcl - carrying out operation and maintenance of 1 no. 220/33 kv pooling substation -1 and associated 220 kv dc lines including 33 kv lines and water supply scheme at n.p. kunta site and 3 nos 220/33 kv pooling substation -1,2 and 3 and associated 220 kv dc lines including 33 kv lines and water supply scheme at galiveedu site of aumsp(1500 mw) at ananthapuramu distict, a.p. for a period of 1 year.