Hi ashray,
     You have a good percentile. But surathkal is one of the top NITs and the cutoffs for most of the sought after courses is above 99 percentile. That being said,  you might get a chance in Surathkal for Mining engineering. This too you won't get in the first round itself. Since you have a very good percentile I would recommend you to use the below college predictor and not take risks on which college you might get. The tool is very helpful when it comes to selecting colleges.
https://engineering.careers360.com/jee-main-college-predictor

Hey Ashray,

You may check the possibilities of yours getting the NIT surathkal by using the most accurate college predictor by career 360 in the link below :

https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=2ahUKEwic3pyQnvnhAhUILo8KHXMgB2sQFjACegQIABAB&url=https%3A%2F%2Fengineering.careers360.com%2Fjee-main-college-predictor&usg=AOvVaw1pTMu5LewXe0n3JPiA8V2U

Good luck !

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