According to the reports if a customer will recharge with:
Rs. 303 he/she will get 5GB 4G data worth Rs. 201 absolutely free.
Similarly if a customer will recharge with:
Rs. 499 or more he/she will get 10GB 4G data worth Rs. 301 absolutely free.
These extra benefits will be credited in customers account automatically.
There is no confirmation that this buy 1 get 1 offer is applicable for only a single month or till 31st March 2018.