Sec 187 - Representation of corporations at meetings of companies and of creditors.
(1) A body corporate (whether a company within the meaning of this Act or not) may
(a) if it is a member of a company within the meaning of this Act, by resolution of its Board of directors or other governing body, authorize such person as it thinks fit to act as its representative at any meeting of the company, or at any meeting of any class of members of the company :
(2) A person authorized by resolution as aforesaid shall be entitled to exercise the same rights and powers (including the right to vote by proxy) on behalf of the body corporate which he represents as that body could exercise if it were an individual member, creditor or holder of debentures of the company.
Ttarget='_blank' rel='nofollow' hrefore in second case Mr X will be regarded as representative instead of a proxy.Even Mr. X can appoint a proxy for attending a meeting.