Dear Lokesh, 

The cut offs for a college depends on the difficulty of paper and number of intakes. There is no apprefiable change in cut offs. Hence I provide you with cut offs of chemical engineering for different categories - 

OC : 4030

SC : 18324

ST : 30667

BC-A : 5065

BC-B : 9371

BC-C : 4030

BC-D : 6727

BC-E : 4180

Hope this helps. 

All the best.