Annual Maintenance Contract of Split type ( 1. 0/ 1. 5/ 2TR ), Window type ( 1. 5/ 2. 0TR ), Cassette type ( 3TR ) AC machines, Refrigerator and Water Cooler at DRM Building, Construction Building, B. C. Roy, Building no- 210 etc for three ( 03 ) years under the jurisdiction of Sr. SE/ E/ G/ SDAH- II.