There is a whole group of website part of Bharat Matrimony (site where parents find life partners for their sons/daughters) catering to the particular regions/languages in India - bengali, tamil, kannada, telugu, etc. Each on its own domain.

There are also separate sites for various religions and some exclusive sites like Privilege Matrimony, Elite Matrimony, DivorceeMatrimony, Defence Matrimony, etc.

Check out http://www.bharatmatrimony.com/