- replacement of faulty 4x 7 tr scroll compressor ,other spare parts i/c allied works for hpac plant at 2nd floor cdr edc server room saltlake main te bldg saltlake kolkata ( sh repairing and servicing of hpac plant and other spare parts at 2nd floor server room, cdr edc, itpc, saltlake main t.e. bldg., saltlake, ctd.

- replacement of faulty 2 x 7 tr scroll compressor, other spare parts i/c allied works for hpac plant at 2nd floor cdr edc san network, tape library, network room, saltlake main te bldg., saltlake kolkata (sh-repairing and servicing of hpac plant and other spare parts at 2nd floor san network, tape library, network room, cdr edc, itpc, saltlake main t.e. bldg., saltlake, ctd.

Replacement of faulty 2 x 7 tr scroll compressor, other spare parts ic allied works for hpac plant at 2nd floor, cdr edc network, san, tl room, salt lake main te. bldg. salt lake, kolkata

Replacement of 02 nos 5 55 tr scroll compressor at 2nd floor workstation ic replacement of faulty spare parts with allied works at cdr edc saltlake ctd, kolkata ph i

Itc of 3 x 7 tr scroll compressor i.c allied works for hpac plant at 1st floor proposed nms switch room eznc technical building saltlake ctd

Replacement of faulty addressable main fire alarm control panel for existing addressable fire detection system for 3rd floor cdr edc , saltlake , kolkata

- replacement of faulty door drive i/c door motor, power pack and allied works for 10 passenger lift at cdr edc, saltlake main t.e, ctd..

Itc of 3 x 1.5 tr sac units ic power feeding arrangement and allied works at l shaped switch room, 2nd floor for cooling area reduction and shutdown of 4 x 14 tr hpac units ezbc technical bldg saltlake ctd sh itc of sac units

Replacement of faulty smps type dg battery charger and dg ing battery for 1000 kva dg set no iv and 500 kva dg set no iii ic allied works at saltlake main te cdr edc saltlake ctd

Re-arrangement of supply air duct and allied work for 3 x 7 tr stulze make hpac units at t.e. bldg. harinavi