Tata Sons Chairman-designate Natarajan Chandrasekaran will also hold the chairmanship of the group's crown jewel Tata Consultancy Services from Tuesday.
The country's largest software services provider has also named V Ramakrishnan as its Chief Financial Officer to succeed Rajesh Gopinathan, who will take over as the CEO and MD of the Tata Group company.
"TCS has received a letter from Tata Sons, in exercise of the powers under Article 90 of the Articles of Association of the Company, nominating N Chandrasekaran as the Chairman of the Board of Directors of the company in place of Ishaat Hussain, with effect from February 21, 2017," it said in a BSE filing.
The nomination was duly noted by the directors at its meeting held on February 20, 2017, it added.
Chandrasekaran, currently Chief Executive and Managing Director of TCS, will take charge as the Non-Executive Chairman of the board of directors of TCS with effect from tomorrow.
In a separate filing, TCS said its board of directors appointed V Ramakrishnan as the Chief Financial Officer with effect from February 21.
Ramakrishnan, or Ramki as he is popularly known, joined TCS Finance in 1999, and served as the Finance Head of TCS North America for seven years.