It is a subsidiary of the Tata Group , an Indian conglomerate .
Tata Teleservices Limited ( TTSL ) is an Indian broadband and telecommunications service provider based in Mumbai , Maharashtra , India .
Tata Teleservices Limited is a subsidiary of the Tata Group , an India conglomerate .
Tata Teleservices Limited ( TTSL ) is an Indian broadband and telecommunications service provider based in Mumbai , Maharashtra , India .