Section 19A(6) in The Tamil Nadu Electricity Supply Code, 2004
(6)The enforcement provisions of the Act and the procedures given in this code shall be followed to recover the assessed amount from the person. In case of default in payment of the assessed amount, including default in payment of any of the installment permitted by the licensee concerned and agreed by the person, the licensee concerned may, after giving a fifteen days' notice in writing disconnect the supply of electricity.