Dictionary meaning of matrimony is "state of being married".There are many websites on internet where you may create your free profile and find your soulmate. In case you are not ready for marriage you can still create profile to find a Girl Friend or Boy Friend.
Top Two matrimony Websites are Shaadi.com and BharatMatrimony.com .These two websites also operate 15 language based matrimony sites.All of these are free to register and create profile.
Shaadi.com language(region) based websites are listed at http://matrimony.directory/12-languageshaadi.html
BharatMatrimony.com language(region) bases websites are listed at http://matrimony.directory/10-languagebharat.html
Wish you happy searching for your soulmate and/or BF/GF.