Section 55(1)(b) in Gujarat Gas (Regulation of Transmission, Supply and Distribution) Act, 2001
(b)where the quantum of gas which he transmits on or after the commencement date by means of pipelines existing before the commencement date exceeds the quantum of gas transmitted by him on the day immediately before the commencement date-(i)the charges for transmitting the excess gas shall be regulated by the Authority, and(ii)the transmission of the excess gas shall be based on the principles of common Carrier.