I am a hindu boy from a different state and she is a girl from different state als.ooo... but we are in deep love.. I need to marry her,, I need some sugestion what can I do ti get her... and what all things I will face after marriage...

From what I know, you have to understand her family's wishes, and the traditions of her faith. Does she want to marry you? Has she brought up you seeing her family?

If you are a respectable person, you should become a muslim before, and after that you should approach her respectfully through her close male relatives, because otherwise she would be disobeying Allaah. So First look into Islam, if it is something you can accept as your Religion to never again worship none, but Allaah, your Lord, without statue or picture, and without anything beside Him, and following His Prophet Muhammad -peace and blessings of God be upon him- who was sent as a mercy to the worlds.

And what you will face in the future is only known by Allaah. ;)

Oh, but if you cheat your wife, your expiation for it would be being stoned to death. My contract with my wife is that if anyone of us does it, then he/she will seek to be purified according to The Order of Allaah. So look how beautiful is Islam then! Alhamdu Lillaah. I never have to worry about her fidelity, nor she of mine. A believer want`s to be stoned in this world better than meet his/her Lord with that sin.
And children are a blessing in Islam, so we shouldn`t destroy them, like people do (abortion).