On 31st August 2018, DoT issued the guidelines for the grant of Unified License (Virtual Network Operator). The first and second paragraph of this document (which lays out the objective) is reproduced below.
One of the strategies for seamless delivery of converged services is to move towards a Unified License regime and facilitate delinking of licensing of networks from the delivery of services so that Telecom Service Providers (TSPs) can utilize their networks and spectrum efficiently, by sharing active and passive infrastructure and also to facilitate resale at service level by introduction of Virtual Network Operators (VNOs).
