Section 266A(b) in The Companies (Amendment) Act, 2006
(b)director of a company appointed before the commencement of the Companies (Amendment) Act, 2006 , shall make an application for allotment of Director Identification Number to the Central Government in such form, and manner (including electronic form) alongwith such fee, as may be prescribed: Provided that every director, appointed before the commencement of the Companies (Amendment) Act, 2006 , shall make, within sixty days of the commencement of the said Act, such application to the Central Government: Provided further that every applicant, who has made an application under this section for allotment of a Director Identification Number, may be appointed as a director in a company, or, hold office as director in a company till such time such applicant has been allotted the Director Identification Number.