Apspcl - Carrying Out Operation And Maintenance Of 2 Nos. 220/33Kv Pooling Sub Stations-1 And 4 And Associated 220Kv Dc Lines Including 33 Kv Lines, Water Supply System At N.Pkunta Site Of Ananthapuramu-I Ultra Mega Solar Park (1500 Mw), Sri Satya Sai District, Andhra Pradesh For A Period Of Two Years.