Hi

According to Careers360 your appx rank will be between 25838 to 29838. 

Last year in NIT Hamirpur chemical engineering cutoff was 31716

In NIT Rourkela cutoff in Mineing engineering was 29863

So you have very high chance of getting into any one of the NIT of your choice. 

Chemical engieering should be prefered from viewpoint because the package is very high.