India’s Reliance Industries Ltd (RELI.NS) will launch its ambitious 4G telecoms venture in December through a direct physical presence in over 1,000 “Jio Centers” and will also sell self-branded devices under its retail unit, the company disclosed in a post earnings presentation on Saturday. The energy conglomerate run by the country’s richest man, Mukesh Ambani, re-entered the telecoms sector in 2010 and has already invested over $15 billion in building the country’s largest 4G broadband network, with commercial operations expected to start in December.