18-09-2013: DoT panel recommends mass solar cell towers for BSNL.KOLKATA/NEW DELHI: A telecom department (DoT) panel has recommended that stater-un telecom company Bharat Sanchar Nigam (BSNL) be tasked with expediting mass solarisation of its cell towers in India's power strapped rural zones with support from Universal Services Obligation Fund (USOF)..ET