Quorum will be 11 members
As per section 112 of Companies Act,2013 a person holding represntation of body corporate shall be DEEMED TO BE THE MEMBER and such person shall enjoy all the rights even right to appoint proxy.
Also there shall be presence of 2 persons for coducting the general meeting which is fulfilled by your problem.
Therefore,Such meeting shall be valid
Changing facts of your case:- if any sole member beside his membership holding representation of 4 body corporate
Then in legal sense quorum will be complete i.e. 5 but meeting will not be valid as there shall be physical presence of 2 members
Same was held in case of :- James prain and sons Ltd.
Thanks.