Section 11(5)(b) in Uttarakhand River Valley (Development and Management) Act, 2005
(b)In the case of a department of any State Government or the Central Government or persons or body corporate if the Executive committee has any objection shall inform such department of the same within six weeks from the date of receipt by him under clause(a) of the department's intention, and if the said committee does not make any objection within the said period the department shall be free to carry out the proposed development;