Reliance 4g sim is connecting in "WCDMA only" mode.Even when there is no data balance,still also it is working and no deduction is being done from the main balance.I can't check more because I have very high balance in sim and doesn't want to take risk. Btw I am taliking about UPEAST where there is no 3g of Reliance.So guys having less balance in sims can check this out