Can I get CSE with general category rank of 21693 in any college?

Congratulations on getting this rank. Some great colleges await your admission. Click on the link to learn about your potential colleges- https://www.shiksha.com/college-predictor.

Your rank is quite good, congratulations. Definitely, you can get a seat in a good college. You didn't mention the college. So, you can use college predictor in Shiksha. https://www.shiksha.com/college-predictor

Just go through this link and fill out the required details in College predictor on Shiksha https://www.shiksha.com/college-predictor.