Bharat Broadband Network (BBNL) Chairman Sarvesh Singh has said the state-run telecom infrastructure provider is planning to take over operations and maintenance work of optical fibre-based infrastructure being laid under BharatNet project. The entire maintenance of fibre under BharatNet is done by BSNL, he added. BBNL had allocated around 70% of rural broadband network roll-out work to BSNL.