Free SMS to India is one of the largest categories on TextMeFree.com with 24 free text messaging services listed:
One of the most professional and reliable free sms services to India is YouMint.com. YouMint.com is a social networking site, so offers many more services that just free sms. Once you have registered and activated your mobile phone, you can send free sms to any mobile phone in India (anyone outside India can register and use the site).
Small adverts are attached to each sms you send, but they are contexualised, and the adverts are what makes the sms free.
You can send free sms to both YouMint members and non-members, although you get more free sms for members.
As an account member, you will receive promotions, but YouMint make this very profitable for you, because for every promotion you receive you will also receive more free sms.