Which one of the following States of India has passed a legislation (in 1996) making the maintenance of one's parents mandatory?

1. The question asks which Indian state passed legislation in 1996 making the maintenance of one's parents mandatory. 2. Himachal Pradesh was the first state in India to enact such legislation. 3. The Himachal Pradesh Maintenance of Parents and Dependents Bill was passed by the state assembly in 1996, making it obligatory for children to maintain their aged parents who are unable to maintain themselves. 4. This state-level initiative preceded the central Maintenance and Welfare of Parents and Senior Citizens Act, 2007.