Airtel is one of the fastest 4G network in India. Airtel 4G has widest 4G coverage, in rural areas also. I am belongs to rural area so I have experience of this network. If anyone asked to me which is good 4G network then I would recomend him/her about airtel. As well as airtel gives you cheap 4G plan, It’s monthly pack with unlimited calling, daily 1GB data, daily 100SMS strats about ₹149-₹199.