GSM is the short form of “ Gram Square Meter”. This is normally confused with gms ( weight of the garment). It is not possible for a non industry person to determine the gsm. of a garment unless a lab test is done to determine the same. It is very unfortunate that a non industry person normally while comparing the price of a garment of various manufacturers use G.S.M.as a bench mark. Higher the gsm better the quality is an absolute myth.