For register marriage?

Hi! i am KK i am in aboard,but we are in love for two yrs ,now we want marry,she is in india&she is 18 yrs old,so we want do register marrige,we are same religon,because of some family problem like[dowry],any body can help me by, what the doents need for both of us.In 6-8 month i am coming 2 india,so plz help me