APPOINTMENT OF ADDITIONAL DIRECTOR THROUGH BACKEND PROCESS

Facts of the company: 1) ABC co. is private limited. 2) Litigation case is going one. 3) Two groups of shareholders are there . 4) Addtional director was appointed and was regularised by holding AGM and DIR-12 was filed for regularisation. But in agm by mistake the voting was done by show of hands instead of poll. Even though the major shares are in our side, the resolution was not passed which was realised later on. Only two directors were there on board including the additional director appointed. And now we want to appoint another director . So can we appoint the additional director through backend process? can we appoint the same director ? PLEASE REPLY URGENTLY