BID FOR DESIGN, ENGINEERING, SUPPLY & PROCUREMENT, ERECTION, TESTING AND COMMISSIONING OF GRID-CONNECTED PHOTOVOLTAIC ROOFTOP SOLAR PLANTS OF 2X50 KW(AC) + 1X20 KW(AC) AT GIPCL VADODARA COMPLEX AND 1X10 KW(AC) AT GIPCL HOUSE (MD RESIDENCE) NEAR GIPCL CIRCLE, VADODARA, IN THE STATE OF GUJARAT