Which amendment made written advice of Cabinet mandatory for Emergency declaration?

Which one of the following amendments in the Constitution of India made a Proclamation of Emergency immune from judicial review ?

Which Amendment Act made Sikkim a full-fledged State of the Indian Union and omitted the Tenth Schedule?

Which Amendment Act made it compulsory for the president to give his assent to a Constitutional Amendment Bill?

Which of the following Constitutional Amendment Acts was termed as Mini Constitution?

By Which one of the following Constitutional Amendments Delhi became ‘National Capital Region’?