10th Amendment Bill passed in:

The 10th Constitutional Amendment to the Constitution of Pakistan was passed on 29 March 1987. It amended Articles 54 and 61 by reducing the maximum interval between two sessions of the National Assembly and the Senate from 160 days to 130 days. It also reduced the required annual sitting days of the National Assembly from 60 days to 30 days.

• Amendment: 10th Constitutional Amendment
• Year Passed: 1987
• Date: 29 March 1987
• Articles Amended: 54 and 61
• Key Change: Reduced the maximum interval between parliamentary sessions from 160 days to 130 days.

Therefore, the correct answer is: 1987.