State-owned Bharat Sanchar Nigam Ltd expects the roll-out of its 4G wireless service to be completed in 18-24 months, Sanjay Dhotre, minister of state for communications, said on Wednesday. BSNL had invited expressions of interest on January 1 seeking prior registration or proof of concept from Indian telecom equipment manufacturers interested in participating in its upcoming 4G tender, Dhotre said. …
