Dear Adinarayan, 

According to your son's percentile in jee mains his General rank will be around 58k and obc rank will be around 18k.

With this rank he will be definitely qualify for jee advanced don't worry about it also he will able to get seat in nits. 

Hope this satisfies your query. 

Good luck. 

Hi dear,

He has got 93.30 Percentile that means his rank should be around 75k in general and 21k in category you can check here

https://engineering.careers360.com/jee-main-rank-predictor

He is eligible for advance easily because according to our prediction the cutoff percentile may be around 85.So congrats and Good luck for advance.