Annual Maintenance Work (Labour) Including Supplying & Fixing Of Consumable Items Of Already Installed 49 (Forty Nine) Nos. Water Purifier Model No. 60/80 Ss Ro And 50 Lph Ro For The Period Of 365 (Three Hundred Sixty Five) Days Within The Campus Of Ipgme&R-Sskm Hospital, Kolkata During The Year 2025-26 & 2026-27.