non comprehensive annual maintenance and round the clock operation of vam ( vapour absorption machine ) based ac plants and centralized ac plants installed at panipat refinery , px pta and panipat naptha cracker plant of prpc complex . , non comprehensive annual maintenance & round the clock operation of vam ( vapour absorption machine ) based ac plants & centralized ac plants installed at panipat refinery , px-pta & panipat naptha cracker plant of prpc complex . details of item given in schedule of rates in scc_technical , enclosed separately . percentage rate to be quoted here which will be effective on each items of schedule of rates given in tender document . ( part-a consists of rfq item no . 10 , 40 & 70 part-b consists of rfq item no . 20 , 30 , 50 , 60 & 80 )