Each Stock Exchange can have its own bye laws which lays down rules regarding the admission of trading members, listing requirements, fees, suspension of admission etc etc and differ from exchange to exchange, but these have to be in conformity with the provisions of the SC(R)A, 1956, SC(R)R, 1957 and the SEBI Act, 1992.
Such bye laws framed by the stock exchanges need to be approved by the SEBI.