Taking on the JioPhone 4G feature phone with smartphones, Airtel has partnered 4G device manufacturers in India for itsMera Pehla 4G Smartphone initiative. The first fruit of these partnerships is with Karbonn Mobiles, with the Karbonn A40 Indian said to now be available at an .Reliance Jio Infocomm Limited, or Jio, is an LTE mobile network operator in India. It is a wholly owned subsidiary of Reliance Industries .Jio – The largest 4G network in India offers high speed mobile internet connection& an engaging digital ecosystem for a seamless .