What changes were made by the Constitution (Sixty-seventh Amendment) Act, 1990?
The Constitution (Sixty-seventh Amendment) Act, 1990 made the following changes:

1. It substituted "five years" for "three years" in reference to the Proclamation issued under clause (1) on the 11th day of May, 1987 with respect to the State of Punjab. This was done as per the provisions in the brackets of section 3 mentioned at the end of the context.