NUS Admission in UG -> URGENT!!

Hey, I am Indian State Board student and my acads are as follows:

10th SSC Board -> 84 %
12th SSC Board -> 73 %

SAT 2 Score -> 2290 (800 in Mathematics Level 2)

NUS is asking for my May SAT 1 Score and IIT-JEE Scores.

I am expecting a rank less than 10k (Means I am damn sure to get qualified in IIT-JEE) in IIT-JEE 2012.

Some people say that all IIT-JEE qualified candidates get admission in NUS easily irrespective of their board performance. What are my chances for getting selected in NUS?