New Delhi, April 4 -- The telecom regulator has directed Reliance Jio, the country's largest telco by market share, to stop certain tariff practices it flagged as "violating" transparency and "discriminatory", according to a letter seen by Mint.

Jio, which has over 500 million subscribers, told the Telecom Regulatory Authority of India (Trai) that it was in compliance with the regulator's guidelines, and the tariff plans offered are based on "intelligible criteria", and cannot be treated as discriminatory.

The service provider has been given time till 14 April to comply with two directions. First, Jio has to publish and make available all tariff offerings, including the three special tariff vouchers- Rs.249, Rs.199 and Rs.209-at all its...