Sites to send free SMS in India.

Are you hunting to send free SMS in India your search stops now. There are many sites which provide this service. Their service may vary in form of the characters allowed in a single SMS and also a limit on SMS in a single day and even single hour.
Nevertheless they are free.

SMS Gupshup - A group SMS service which is free but the limit is 8 SMS in a day to a group.
160by2 - Another popular free SMS service provider but the limit is only 70 characters.
Google SMS Labs - Now is very popular. Don't forget to join SQUAMBLE SMS group. (A Bul SMS service provider. Only useful for bloggers) (Login using your Gmail ID.)
SMSLife.in - This is a unique one. You can also send vioce SMS.
SMSfree4all - This is ultra unique platform as one can also send free MMS across India and also SMS.
YouMint.com - YouMint is also a good platform to send free SMS across India. More over YouMint pays you to invite friends and to receive SMS promos!
IndyaRocks.Com and Ibibo.com - Just another free SMS service providers

Mobile Arena is growing and so is Web 2.0.
If you have any other site from where you can send free SMS , do comment.

*Image credits - IKF.co.in