<Ul> <Li> Manipur </Li> <Li> Orissa </Li> <Li> Punjab </Li> <Li> Rajasthan </Li> <Li> Sikkim </Li> <Li> Tripura </Li> <Li> Uttar Pradesh </Li> <Li> West Bengal </Li> </Ul> <P> Did not ratify: </P> <Ol> <Li> Gujarat </Li> <Li> Jammu and Kashmir </Li> <Li> Kerala </Li> <Li> Meghalaya </Li> <Li> Nagaland </Li> <Li> Tamil Nadu </Li> </Ol> <Li> Jammu and Kashmir </Li>

Which important aspect did the 42nd amendment to the indian constitution in 1976 introduce