<ul><li><a href=https://www.trai.gov.in/sites/default/files/201112090319525483750RIO_Regulation_12th_July.pdf target=_blank>The Telecommunication Interconnection (Reference Interconnect Offer) Regulation, 2002(The Telecommunication Interconnection (Reference Interconnect Offer) Regulation, 2002. Adopted on 12/07/20. Article 3. )</a></li></ul>