Mistry was sacked as chairman by the board of Tata Sons - the holding company of group firms - on October 24 but he continues to chair the boards of various entities.
Earlier in the day, software major TCS announced that Ishaat Hussain would replace Mistry as its chairman. TCS has received a letter from Tata Sons nominating Hussain to the post.
The other 6 companies are: Tata Steel, Tata Motors, Indian Hotels, Tata Power, Tata Chemicals and Tata Global Beverages Ltd.
"Once proposed, it is certain that the proposal will be accepted even if all public shareholders vote against, since the promoters hold more than 50 per cent of the voting powers," InGovern said.
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It said it is to be seen as to what happens with all the other companies where Tata Sons has a holding below 40 per cent.
Apart from TCS, another group firm Indian Hotels Company has notified stock exchanges of requisition received from Tata Sons to call an Extraordinary General Meeting (EGM) for removal of Mistry as a director of both companies.
"It is expected that Tata Sons will issue special notices and call for EGMs in all the 7 listed Tata Group companies where Mistry serves as a director and chairman," InGovern said.
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