Special Bench constitution enables chair to form multi member benches and resolve member deadlocks by further referral. The Chairman may constitute a Special Bench drawn from all Benches for disposal of a case, to be presided over by the Chairman or a Vice Chairman. If members are equally divided they must state the points of difference and refer them to the Chairman for hearing by other Members, whose majority opinion will decide. If one or more members are unable to function or a vacancy occurs, the remaining Members may act as the Bench if more than three remain, with the senior-most serving as Presiding Officer.