There is very less chance of getting CSE/chemical. But cutoff varies every year. I suggest you to go for counselling with CSE/ Chemical . There are chances of getting these branches.

As per your rank and previous year cutoff, the colleges you get are:-

NIT Rourkela

Branches: Biomedical engg., Life Science,Chemistry,Biotech engg.

To know more about your chances of getting other colleges check out the college predictor link below:

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

Hi,NIT Rourkela last year cutoff rank for chemical engineering was 10330 Round 7 in home state quota and for cse it was around 5500 for home state quota and there were no seat allotment in chemical and computer science engineering department in special rounds also. So, not looking possible as of now try for some other colleges. Don't waste time