For some time, BSNL was the cheapest prepaid internet connection company in India
However they have revised the schemes in January 2018
Earlier the Rs 444 scheme was valid for 90 days
Now Rs 444 offer it is valid for only 60 days
So for a month , the charges are Rs 222 which is more than the airtel offer of Rs 199 for 28 days
A review of the BSNL speed in 2018 will be posted in a few days time.