21. (1) No advocate other than an advocate ¹[permitted to practise before the High Court] immediately before the commencement of this Order shall be permitted to practise before the High Court unless- (a) he has practised as an advocate before subordinate courts in Bangladesh for a period of two years; (b) he is a law graduate and has practised as an advocate before any High Court outside Bangladesh notified by the Government in the official Gazette; (c) he has, for reason of his legal training or experience, been exempted by the Bar Council from the foregoing requirements of this clause on the basis of the prescribed criteria. (2) Permission to practise before the High Court shall be given in the form prescribed by the Bar Council on proof that the fee prescribed under Article 22 has been paid and that the relevant condition laid down in clause (1) are duly satisfied.