Gopi's Online tools
Free
Web based SMS to India:
Note:
1. The delivery is dependent on the mobile service provider's EMail2SMS service.
We can only confirm that the SMS leaves our server. We cannot confirm the delivery. Hence do not rely on this tool for sensitive SMS.
2. Some providers does not accept yahoo/hotmail email ids as from ids. please try using 
in the from id if you face this issue. (If you use in the from email id,
please make sure to leave your name/contact in the SMS otherwise the receipent may get confused)
3. The IP address,Browser used,SMS and From/To details are logged for fine tuning/debugging purpose. The log will be kept highly confidential and will be deleted periodically.