(1) The Tribunal shall, after consultation with the parties, estimate the probable duration of enquiry by the Commissioner referred to in rule 48 and fix the fee and other incidental expenses incurred.

(2) The Tribunal shall direct the payment of fee and other incidental expenses to the Commissioner, within specified time, by such party or parties and in such proportion, as it may deem fit.

(3) The Commissioner shall not submit his report until the receipt of deposit of fee referred to in sub-rule (2) is filed before the Tribunal:

Provided that the Tribunal may, for reasons to be recorded in writing, direct that any further sum or sums be deposited within such time or extend the time for depositing and by such parties as it may deem fit.

(4) The Tribunal may, at any time, for reasons to be recorded in writing, vary the amount of the fee.

(5) The Tribunal may direct that the fee shall be disbursed to the Commissioner in such instalments and on such date as it may deem fit.

(6) The undisbursed balance, if any, of the sum deposited under this rule shall be refunded to the respective party or parties who deposited the sum in the same proportion as that in which it was deposited.