<https://telecom.economictimes.indiatimes.com/news/bsnl-says-it-is-most-competitve-in-india-assures-to-retain-prepaid-value-plans/58364945>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://telecom.economictimes.indiatimes.com/tag/bsnl+offers>