First of all, there is no fixed syllabus for NIMHANS’ M.Phil and PhD (Clinical Psychology) entrance exams. The exam comprises several MCQs, for which you have to go through many topics rather than studying deeply. So, one should try to read as many books as possible or at least go through their glossaries only. Here are some great recommendations for M.Phil and Ph.D. (Clinical Psychology):
To score better you should focus more on these specific topics:
Additionally, for the PhD entrance exam, you need to study Statistics and Research Methodology.