Hi there. 

If you want to pursue Clinical Psychology at the University of Delhi, then you should be going for South Campus. 

In North Campus at DU, there is a course in General Psychology with 100 seats and in South Campus there's a course in Applied Psychology with specializations either in Clinical, Social or Industrial Psychology with around 30 seats. 

So if you want to study Clinical go for South Campus. You'll get to choose your specialization in the 3rd semester. 

To get a seat in the South Campus you will have to crack the entrance examinations for Master's in Psychology. The exams are conducted in the month of May and the applications start in the month of April. The exam is MCQ based and you are advised to complete your whole undergraduate syllabus for doing well in the entrance test. 

For preparation of the entrance tests the following books might prove helpful:

1. Social Psychology - Arun Kumar Singh

2. Abnormal Psychology - Butcher (Pearson publications)

3. Industrial Psychology - Ghosh and Ghorpade

4. Statistics - A K Singh

5. Objective Psychology - RPH Editorial board

After the entrance exams, the meritorious candidates are called in for an interview. The marks of the entrance examination and the interview are considered for the preparation of the final merit list. 

When it comes to Master's, there are no specific colleges. The classes are held at the University's Official Campus building.

All the best.