http://www.rcom.co.in/Rcom/personal/home/net-buddies.html

Reliance customer just dial
53030300
toll free number
Enter your non-Reliance friend’s 10 digit mobile number when asked. (You may refer upto 100 friends)
The free benifit will be credited within 72 hours after your friends buy a Reliance GSM sim and activate for extra 25% data.

Get your Relaince buddy to refer you.
Buy Relaince GSM prepaid SIM with in 45 days and call 53030300 toll free number.
After that enter 10 digit mobile number of the Reliance friend who referred you.
Then enter your non-Reliance number which was referred by your Reliance friend.
Enjoy extra 25% data for 6 months.
T&C:

The Referred customer should not be on the Reliance network on the day he has been referred.
The Rererred customer needs to move to Reliance Prepadi GSM within 45 days of being referred for both the referred and referee to get the benefit.
The free benefit will be credited within 72 hours.
Validity of free data for the referring customer is 30 days.
While validity of free data for the referred customer will be as per validity of the data recharge.
The Referee number needs to be on Reliance GSM prepaid, and the referred customer needs to move to Reliance GSM Prepaid.
The Refering customer can get maximum of upto 5gb in month.
The 25% extra data will be on the open market data quote of the recharged MRP and will not apply on any special benefits.

Vu