Section 17A(3) in The Industrial Disputes Act, 1947
(3)Where any award as rejected or modified by an order made under sub-section (2) is laid before the Legislature of a State or before Parliament, such award shall become enforceable on the expiry of fifteen days from the date on which it is so laid; and where no order under sub-section (2) is made in pursuance of a declaration under the proviso to sub-section (1), the award shall become enforceable on the expiry of the period of ninety days referred to in sub-section (2).