My friends 04 G is a very good sim card for our youth it is not very costly and it is very faster it give us 3 month Internet service unlimited time and free calls you can buy the SIM card in your near Store for just rupees 200 and if you buy a mobile Likewap you you have SIM card in your mobile with l y f mobile and if you have four G mobile any company you can download Jio apps and buy a sim card from Jio customer care or Store you can surfing on 4 G speed then it is very fast Internet and calling so you can buy the SIM card where available but this sim card only work in one mobile it not work any other mobile which has activated a mobile sim card but it not lock your mobile phone at work infosy slot so enjoy this sim card service thank you