Hello there...

By seeing cutoff of year 2019 it seems difficult for you to get a better branch in the same college you mentioned (NIT AGARTALA) in further rounds of counselling . I'm assuming that you belong to gender neutral otherwise for female category situation will not be the same.

You should keep float option of Josaa counselling on so that may be you'll be able to get other colleges.we don't know how you've filled your choices so it's uncertain to tell you exactly.

If you are talking about slide of branch in the same college then,

I'm sharing the closing rank for OBC category in some of the branches-

Biotechnology :- All India male-14122

All India female-19773

Chemical :- all India male:-11462

all India female :-18167

Civil :- all India male:-10325

All India female:-17585

Computer science :- all India male:-5878

all India female:-9562

Electrical :-all India male:-9005

all India female:-17440

ECE :-all India male:-7664

all India female:-14067

Mechanical :- all India male:-9467

all India female:-16630

EI :- All India male:-10407

All India female:-19636

Production :-all  India male:-13668

all India female:-20048

Also I'll suggest you to go through the link below

https://engineering.careers360.com/articles/jee-main-cutoff-for-nit-agartala

Thanks...

I hope it'll be helpful..

You will be allotted colleges according to your rank and preferences filled in JOSAA portal. As we don't know your choices we can not exactly say whether it will change or not. You got a quite good OBC rank. Don't worry and keep the FLOAT option on.

All the best.