Companies (Issue of Share Certificates) Rules, 1960
6. Sealing and signing of certificate
Every share certificate shall be issued under the seal of the company, which shall be affixed in the presence of ( i ) two directors or persons acting on behalf of the directors under a duly registered power of attorney; and (ii) the secretary or some other person appointed by the Board for the purpose. The two directors or their attorneys and the secretary or other person shall sign the share certificate:
Provided that, if the composition of the Board permits of it, at least one of the aforesaid two directors shall be a person other than a managing or whole-time director 1[***].
Explanation: For the purpose of this rule, a director may sign a share certificate by affixing his signature thereon by means of any machine, equipment or other mechanical means such as engraving in metal or lithography, but not by means of a rubber stamp, provided that the director shall be responsible for the safe custody of such machine, equipment or other material used for the purpose.