(2) The Director General of Income-tax (International Taxation) (for unilateral agreement) or the competent authority in India (for bilateral or multilateral agreement) may, allow the amendment to the application, if such an amendment does not have effect of altering the nature of the application as originally filed.

(3) The amendment shall be given effect only if it is accompanied by the additional fee, if any, necessitated by such amendment in accordance with fee as provided in rule 10-I