(2)(a)The authorisation under sub-section (1) of section 132 (other than an authorisation under the proviso thereto) by the Director-General or Director or the Chief Commissioner or Commissioner or any such Deputy Director or Deputy Commissioner as is empowered by the Board in this behalf shall be in Form No. 45;(b)the authorisation under the proviso to sub-section (1) of section 132 by a Chief Commissioner or Commissioner shall be in Form No. 45A;(c)the authorisation under sub-section (1A) of section 132 by a Chief Commissioner or Commissioner shall be in Form No. 45B.