These are corrupt people. People register to the bharatmatrimony site. They sell this infomation or pass it on to other sites like elite matrimony and divorcee matrimony.
Also they pass on phone numbers to many. All this is done without permission of registered and paying members. Just stay away from this site. Their behaviour is nothing short of identify theft. Next thing you know, your information will be used by criminals or terrorists if you give to these bharatmatrimony people