If you want to do BSc Nursing then there are plenty of colleges. But if you want to do BSc Nursing from Delhi University then its not possible because DU don't offer such courses.

To know about the Undergraduate courses in DU you may visit the link provided below:

http://www.du.ac.in/index.php?page=departments-2#intdis

I hope this answer helps. All the very best for your future endeavors!