Well I don't know how many of you guys use this feature and whether its still available or not but I found it interesting that using Reliance RIM Directory you can find out person's address from its phone number. This is limited to only for Reliance mobile numbers.
Its definitely possible to know another RIM user's no. or the address from a RIM No. I will describe how you can do this using your reliance cellphone.
1. Go to R-World on your handset.
2. Select "R- Guide" or "Guides"
3. Select "RIM Dir"

Sending SMS is not that expensive in India. Each and every operator comes up with lot of deals and different packages that would include hundreds of SMS per month.
As you know that Tata DOCOMO has introduced some really good 



