Hey, congratulations on such a great rank. Yes. You stand a very good chance of getging into almost any branch at National institute of technology, Calicut. And that is applicable for both, your general rank as well as your obc rank.

A link has been attached below for your further reference where you can see last years cutoff and judge. They might be very similar this year.

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-cutoff-for-nit-calicut/amp