Section 246(1) in Criminal Court Rules of the High Court of Judicature at Patna
(1)Advocates other than Lady Advocates-(a)a black buttoned, up coat, chapkan, achkan, black Sherwani and white bands with Advocates' Gowns, or(b)a black open breast coat, white shirt, white collar stiff or soft, and white bands with Advocates' Gown.In either case long trousers (white, black or black stripped or grey) or Dhoti.