The Government of India has come up with one license for all telecom related services, known as a Unified License. Under unified license, the license holder can apply for ISP license for different areas. One must acquire a Unified License under which he will obtain Authorization for providing ISP services for a certain area. Hence, it must be understood that there is no separate ISP license as such. Instead, one must obtain ISP Authorization under the Unified License.
One company can hold only one Unified License, but can apply for multiple ISP authorizations of different areas. However, the tenure of such authorizations will run concurrently with the tenure of the Unified License, which means that all authorizations will be valid only till the validity of the unified license