I would like to married with a girl for marrige. how to confirm she is a virgin?

Virginity : Only a medical person could do this for you. However if you love her you should marry and not worry about her virginity

Ask: Some women are born without a hymen or loose it in non-sexual activities in childhood.There are also partner sexual activities, including anal sex, that would preserve a hymen but eliminate the "virgin" status.That said there is no medical or other test that confirm virginity though some (STD's) would rule it out. If you have a trusting relationship with the woman, just ask.If not, why marry her.