(a) on the applicant who had sought it;

(b) in respect of the transaction in relation to which the ruling had been sought; and

(c) on the Principal Commissioner or Commissioner, and the income-tax authorities subordinate to him, in respect of the applicant and the said transaction.

(2) The advance ruling referred to in sub-section (1) shall be binding as aforesaid unless there is a change in law or facts on the basis of which the advance ruling has been pronounced.