42A. Pilot not to fly for more than 125 hours during any period of 30 consecutive days - No pilot of a flying machine, shall, in his capacity as such pilot, fly for more than 125 hours during any period of 30 consecutive days:

Provided that without prejudice to the provisions of rule 160, the Director-General may, subject to such conditions and limitations as he may specify, by order in writing, exempt any such pilot from the provisions of this rule.

Explanation- For the purposes of this rule, the flying time of a pilot either as solo pilot or pilot-in-command of an aircraft will be counted fully and the flying time of a pilot engaged as co-pilot or supernumerary pilot will be counted at 80 per cent of the flight time.