Comprehensive annual maintenance contract of 3 nos. watercooled chiller units in the centralized water cooled hvac system available at amma maaligai, ripon building premises for a period of one year in div 58 zone v

Overhauling of 4 nos 1000 kva oil type transformer including filtration and top up of new tr oil 1 no of earth fault relay master relay available in the 11 kv vcb accessories transport charges available at amma maaligai muthamizh arignar kalaign

Supply installation testing commissioning of 2.5pixel led video wall 12 x 28 feet including necessary accessories along with operation and maintenance for 3 years for amma maaligai auditorium at ripon building premises in div 58 zone v

Supply and installation of 4 nos of 4 ton vertical air conditioner systems at amma maaligai auditorium at ground floor ripon building premises div 58 zone v

Provision of new public address system in ground floor amma maaligai conference hall at ripon building premises in division -58 zone-5

El.d.c.no.north/5489/2025/ electrification in lobby (ground floor to 5h floor) in amma maaligai, ripon building in div 58, zone 5

Semi comprehensive annual maintenance contract for 1010kva cummins diesel engine genat amma maaligai ripon building premises for the period of two year in div 58 zone v

Shifting of precision air conditioner from existing location (gis cell, amma maligai) to green building in ripon building,div-58, zone v

Operation and maintenance of hvac plant and fire fighting system in amma maaligai by engaging 7 nos of technically trained manpower for one year period in ripon building premises div 58 zone v

Supply installation testing commissioning provision of additional gooseneck mics central control unit conference unit at existing conference hall in amma maaligai for the additional seating arrangement at ripon building premises in div 58 zone 5