In 2014, I was using MTS prepaid dongle. I literally thrown it away after crushing it. For almost a year, I was struggling to use it. Every month, I recharge it with their most expensive plan of Rs. 999/-. They called it as 10 GB Unlimited plan. For first day, It was good but after first day the internet speed just got too low. Sometimes I couldn’t browse GOOGLE. On the connection MTS, GOOGLE also took minutes to load. I don’t recommend it others!