Reliance Industries'
Reliance Jio Infocomm's agreement with Viom comes after its tower-leasing pacts with Reliance Communications
Reliance Jio and unlisted Viom did not give financial details of the agreement. Viom has 42,000 mobile phone towers, according to a joint statement.
Reliance Industries, controlled by India's richest man Mukesh Ambani bought 4G airwaves in a 2010 government sale, but has yet to launch services. It added some airwaves it can use to offer 4G services from an auction this year.
Viom Networks is a joint venture between India's SREI Infrastructure and mobile carrier Tata Teleservices.