APSPCL - Carrying out Operation and Maintenance of 2 No. 220/33 kV Pooling Sub Station - 3 & 4 and associated 220 kV DC lines including 33 kV lines at N.P. Kunta site of Ananthapuramu Ultra Mega Solar Park (1500 MW) and 2 Nos.220/33 kV Pooling Sub Stations - 1 & 2and associated 220 kV DC lines including 33 kV lines at Talaricheruvu site of Ananthapuramu - II Ultra Mega Solar Park (500 MW), Ananthapuramu District, Andhra Pradesh for a period of 1 Year.