Rule – 24A, Communication regarding partner who is a benamidar

24A. (1) The communication required to be made by any partner of a firm under clause (b) of the Explanation below sub-section (1) of section 185 shall be in Form No. 12A.

(2) The communication referred to in sub-rule (1) shall be made,—

(a) in a case where the firm has not been registered under section 184, before the end of the previous year for the assessment year in respect of which registration of the firm is sought :
Provided that where the registration is sought for the assessment year commencing on the 1st day of April, 1976, the communication may be made before the expiry of the time allowed under sub-section (1) or sub-section (2) of section 139 (whether fixed originally or on extension) for furnishing the return of income for that assessment year;
(b) in a case where the registration of the firm has effect under sub-section (7) of section 184 for any assessment year, before the expiry of the time allowed under sub-section (1) or sub-section (2) of section 139 (whether fixed originally or on extension) for furnishing the return of income for that assessment year.

Reference: www.incometaxindia.gov.in