Section 7(2)(g) in The Forest (Conservation) Rules, 2003
(g)The Central Government shall, after considering the advice of the Regional Empowered Committee and after further enquiry as it may consider necessary, grant in-principle approval subject to fulfillment of stipulated conditions, or reject the same within thirty days of its receipt from the Regional Office and communicate the same to the concerned State Government or the Union Territory Administration, as the case may be, within next five working days.]