The correct option is C 1976
The constitution was amended for the 42nd time in 1976. For a brief period of time, under the Emergency imposed by Indira Gandhi, the 42nd Amendment Act of 1976 had debarred the high courts from considering the constitutional validity of any central law. However, the 43rd Amendment Act of 1977 restored the original position and now the high courts can examine both central and state laws.