annual comprehensive maintenance contract of various capacity and make of split acs , water coolers and purifier at mssr katihar for the year 2020-22 , annual comprehensive maintenance of different make & capacities of split acs i/c stabilizers ( if have ) etc as required & as per the special condition of contract . ( a ) for 1st year , 1 phase 1 . 5 ton split ac at mssr & dvor katihar . , 1 phase 2 . 0 ton split ac at mssr katihar . , annual comprehensive maintenance of different make & capacities of split acs i/c stabilizers ( if have ) etc as required & as per the special condition of contract . ( b ) for 2nd year , 1 phase 1 . 5 ton split ac at mssr & dvor katihar . , 1 phase 2 . 0 ton split ac at mssr katihar . , annual comprahensive maintenance of following make & capacities of water cooler cum purifier & ro system etc as required & as per the special condition of contract . ( a ) for 1st year , water cooler cum purifier at mssr katihar ( make- aqua guard , 60/80 ltr ) . , ro system at mssr & dvor katihar . ( make: eureka forbes , 15ltr ) . , annual comprahensive maintenance of following make & capacities of water cooler cum purifier & ro system etc as required & as per the special condition of contract . ( b ) for 2nd year , water cooler cum purifier at mssr katihar ( make- aqua guard , 60/80 ltr ) . , ro system at mssr & dvor katihar . ( make: eureka forbes , 15ltr ) .