Section 5(2)(a) in Tamil Nadu Electricity Supply Undertakings (Acquisition) Act, 1954
(a)In the case of shares issued on or before the 31st March 1946, the value of each share shall be reckoned at its average value as arrived at from the quotations for the shares as given in the official list of the [Chennai] [Substituted for the word 'Madras' by the City of Madras (Alteration of Name) Act, 1996 (Tamil Nadu Act 28 of 1996).] Share Market on the 15th day of each month and where such market was closed on that day, the quotations on the next working day, during the period of three years commencing on the 1st April 1946 and ending on the 31st March 1949: