Hello swamy, congratulations for your result. To get admission into nit's is a very tough task but it all depends on your rank and a good result something like say between 20k to 40k but anyways you can get a good college. I would recommend you to use these following links so as to acess your chances.

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

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

This is very useful. I hope this helps.

Hello Swamy

To be honest 80.50 percentile is very low to land you up in any NIT's all over India. You know the Nit's selection is also based upon your reservation category but as you have not mentioned then i will consider it to be a general.

If you go with the rank formula then using the below formula but you cannot calculate the score using the percentile.

((100-percentile)*875000)/100

Your rank will be around 1,90000. It is quite high to get to any NIT's.

So take my advice and please work hard for the second phase of the JEE exam's which is in April.

Hello aspirant, 

According to your score,your rank will be nearly 224000. Sorry to say that you have very very less chances to get admission at one of the NITs based on previous year  trends.Better go for jee main 2019 April session and get a better score above 95 percentage. 

Good luck