Reliance jio sim has good unlimited plans at low price. You can enjoy unlimited call and 2gb data per day for 28 days. After the plan expired it also gives 2g data for 28 days and jio to jio call. You can also get some more data by jio celebration pack. Am a customer of it from 6 months and enjoyed a lot services of it. It also give apps like jio chat for chatting and video calling. The video calling quality is superb. it's the no.1 sim in India.