Bharti Telemedia is among the largest in the over 65-million direct-to-home (DTH) paid subscriber market in the country. : Global private equity firm Warburg Pincus will acquire up to a 20 per cent stake in Airtel’s DTH arm Bharti Telemedia for $350 million. This will be the second innings for Warburg to invest in a Bharti Group entity. Bharti Telemedia is among the largest in the over 65-million direct-to-home (DTH) paid subscriber market in the country.