Subject to the provisions of this Act, every advocate whose name is entered in the 3[State roll] shall be entitled as of right to practise throughout the territories to which this Act extends,―
(i) in all courts including the Supreme Court;
(ii) before any tribunal or person legally authorised to take evidence; and
(iii) before any other authority or person before whom such advocate is by or under any law for the time being in force entitled to practise.