DIR-3 CERTIFICATION

DIR 3 should be certified by director himself

Form DIR-3 is mandatory to be signed by the Applicant and shall be verified digitally by a Company Secretary in full time employment of the company or by the Managing Director or Director or CEO or CFO of the existing company in which the applicant is intended to be appointed as a director.

Dir 3 should be digitally
signed by  Chartered Accountant in whole time
practice
 Company Secretary in whole time
practice
 Cost Accountant in whole time practice.
 Company secretary in whole time
employment
 Director
Attestation If eForm is digitally signed by a Chartered Accountant (CA) or Cost
Accountant (CWA) or Company Secretary (CS) (in whole time practice) then
the supporting documents attached shall be self-attested by the applicant.
If eForm is digitally signed by secretary (who is member of ICSI), in whole
time employment or director of existing company then the supporting
documents attached shall be either self-attested by the applicant or duly
attested by either Public Notary or a Gazette Officer of a Government.
The attesting authority must indicate the following while attesting the
documents:- (i) Signatures; (ii)Name in full in Capitals; (iii) Registration No.;
and (iv) Seal/ Stamp.
In case, the director/ designated partner is residing outside India, then the
attached supporting documents should be attested by the Consulate of the
Indian Embassy, Foreign public notary. In case of director, supporting
documents can also be attested by Company secretary in full time
employment /CEO / Managing director of the Indian company in which he /
she proposed to be a director.

dIR-3 for DIN can't be sign by the Practicing Professionals like CA/CS

DIR-3 can be sign by the Director of the Company or

Whole Time Company Secretary of Company can also sign the DIR.-3

A Chartered Accountant as Statutory Auditor or Practicing cant sign DIR-3

Sourav, please stop replying multiple times on same query without knowing facts and law. You are only misguiding others