Dear candidate

As your marks in mathematics is quite good but in GAT your marks is not the 30% of 600 so you are failed in the GAT section and therefore you are not eligible for SSB.try to score 30% atleast in each paper so that you don't have to worry about sectional cutoff which is a crucial thing in NDA exam.read lucent general science book to master your command over" general science " topic .

Hope this will helpful.better luck next time.