It said the users can now access data for just 2 paise per 10 kilobytes, which is a 90 percent reduction in the existing tariff of 2 paise per kilobytes. Idea users in the eight circles of Tamil Nadu & Chennai, Karnataka, Kolkata, West Bengal, Assam, North East, Bihar, and Odisha will benefit from the revised data tariff on both, prepaid and postpaid 2G plans.