Section 7(7)(ii) in The Works of Licensees Rules, 2006
(ii)where a statement is served upon the operator under clause (i), he shall, not less than forty-eight hours before the execution of the alteration is required to be commenced, furnish such security and serve upon the owner a notice in writing intimating the time when the alteration is required to be commenced, and the manner in which it is required to be made; and thereupon the owner may proceed to execute the alteration as required by the operator.