supply of pure helium gas and liquid helium , supply of pure helium gas and liquid helium as per annexure-a , supply of helium gas of purity 99.995% to iuac-delhi in the suppliers quad consisting of cylinders having total capacity~ 400 m3 (per quad) , transportation chargesfor each to-and-fro trip for supplying~ 400 m3 in each truck) helium gas upto iuac-delhi , per day basis retaining charges of the truck with the ordered quads beyong first 5 working days at iuac-delhi , supply of liquid helium in 250l dewars or more at iuac - delhi , transporation charges per batch ( =1000l) of supply of liquid helium at iuac delhi , per day retaining charges for the helium dewars beyond the first 5 days at iuac delhi , supply of liquid helium in 250l dewar or more dewar at sameer, iit bombay campus , transportation charges of dewars per batch ( = 500 l) to sameer-mumbai, iit-bombay campus , per day retaining charges for the helium dewars beyond the first 3 working days at sameer-mumbai , gst