Substantial question of law limits admission of appeals from State Bench orders, requiring formulation and hearing on that question. Appeals to the High Court under Section 117 require satisfaction of a substantial question of law for admission, apply only to orders of State Benches, must be filed in the prescribed form within the stipulated period (with condonation allowed), and the High Court will formulate and hear the appeal on that question while retaining power to consider other substantial questions for reasons recorded.