Tata Consultancy Services (TCS) promoters - Tata Sons and Tata Investment Corporation Ltd - intend to participate in the IT service major's Rs 18,000 crore buyback offer by tendering about 2.88 crore shares, according to a regulatory filing. On Wednesday, the TCS Board had approved an upto Rs 18000 crore buyback offer entailing 4 crore shares at Rs 4,500 apiece. According to a postal ballot notice by the company, the remote e-voting period will commence from January 14, 2022 and end on February 12, 2022. The results of the Postal Ballot will be announced on February 15, 2022, it added. As per the document, Tata Sons and Tata Investment Corporation Ltd - promoter companies of TCS - also intend to participate in the buyback offer.