1) the best way is get get her a K1 (Fiance) Visa and get married in America within 90 days after arrival.
2) after marriage petition for i-130 and then a K3, and have her come here on temp (k3) later to change her status.
3) have ur fingers crossed and give it a shot on DCF after marriage.in New Delhi....
set aside a week for that ,if it works out, u hit the jackpot. else visit the Taj in Agra ...lol
advanced wishes and good luck ....
and keep me posted