hy

as per your percentile your general rank would be around 2,10,000 and your category rank actually can't be predicted as it depend on many factor like no of student who fill the form from your category and what are their intelligence.

you fairly have channce to get into svnit with chemical engineering if that is in your home state but you have to keep patient and go till the last round of even spot round counsiling.

here i'm including a link where you gonna find cutoff for all nits with chemical engineering even with category select best you look at.

good luck