What was added by the Constitution (Forty-second Amendment) Act, 1976?
The Constitution (Forty-second Amendment) Act, 1976 added clause (1B) to Article 352 of the Indian Constitution. This new clause states that nothing in clause (1A) shall apply:

(a) to any law which does not contain a recital to the effect that such law is in relation to the Proclamation of Emergency in operation when it is made; or

(b) to any executive action taken otherwise than under a law containing such a recital.