Can the President suspend any provisions of the Constitution relating to High Courts under clause (c) of Article 242?
No, the President cannot suspend any provisions of the Constitution relating to High Courts under clause (c) of Article 242. The proviso explicitly states that nothing in this clause shall authorize the President to assume to himself any of the powers vested in or exercisable by a High Court, or to suspend in whole or in part the operation of any provision of this Constitution relating to High Courts.