carrying out annual comprehensive round the clock maintenance repair operation and testing of medical gas manifold system and medical gas pipeline system for a period of 1 year , e-tender for carrying out annual comprehensive round the clock maintenance , repair , operation and testing of medical gas manifold system and medical gas pipeline system . , 1 . carrying out annual comprehensive round the clock maintenance , repair , operation and testing of medical gas manifold system and medical gas pipeline system for nth-ii block; medicine icu , respiratory icu & endoscopy unit at medicine block; gynaecology ot ( old & new ) , hdu , labour room ( new ) , nicu ( old & new ) at old gb hospital for a period of 1 ( one ) year . besides , carrying out annual operation of medical gas manifold system and medical gas pipeline system for dedicated covid hospital at jayanti block . 2 . apart from maintenance and operation of the already installed medical gas manifold & pipeline system as mentioned in annexure-b , there are some new extension work which is to be executed along with the scope of work .