Primary-Airtel, Secondary-JIO Last month I moved to a Village Where Only JIO Works Well...So airtel Didn't recharged they blockd my outgoing services though I Hav 70rs Main Balance.
1-Airtel(Primary:2006-2016, Secondary:2017 to till Date)
2-Jio(Purchased as Airtel for Net Offer then Ported to Idea and Finally to Jio and Started Using as Primary)