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. Published : November 29, 2018 04:35 PM IST