Business Here's why Airtel, Vodafone Idea are asking subscribers to do mandatory recharge Updated : November 29, 2018 04:38 PM IST In a bid to boost their revenue, Airtel and Vodafone Idea have announced minimum monthly recharge plans starting from Rs 35. Both Airtel and Vodafone Idea have been sending text messages to their subscribers asking them to mandatorily recharge their accounts. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.