Airtel, Vodafone, Idea and even the state-run BSNL have landed with plans at Rs 300 to counter their common rival jio. Airtel launched a plan at Rs 345 to offer 28 GB 4G data and unlimited voice calls for 28 days with a daily cap of 500 MB at day and 500 MB at Night. Vodafone and Idea offer 1GB and 500MB data with unlimited calling for 28 days at Rs 342 and Rs 348 respectively. BSNL recently came with Rs 399 plan to offer 2GB data and unlimited calls within BSNL for 28 days.