The deal is to be completed by December 31, it added.
Quess Corp Chairman and MD Ajit Isaac said: "We are excited about our partnership with the Tata Group. This investment marks a significant milestone for Quess in its journey to build a world class business services platform."
TBSS is among India's premier customer experience management companies, with over 10 years of sectoral expertise, Quess Corp said.
The Quess stock closed at Rs 865.95, up 5.71 per cent, on BSE.
(Only the headline and picture of this report may have been reworked by the Business Standard staff; the rest of the content is auto-generated from a syndicated feed.)