tender for annual maintenance contract of cabin ac of red dot make provided in beml equipment of block-b project -amc charges for annual maintenance contract for maintenance of air conditioning system in 24 nos. beml equipment ( 13 nos. bh100 dumpers, 03 nos. bd355 dozers, 03 nos. bg825 motor grader, 01 no. excavator be700, 03 nos. water tanker ws-28, 01 no. converted water tanker bh100-1082 ) working at ncl block-b project for the period of one year ( 365 days ) considering periodical / schedule maintenance inclusive of manpower, tools, transportation, refrigerant and its charging, and compressor oil and its filling. 3 total impact of gst for the purpose of ctc