Refer to S.S. Handbook for LLM Entrance Exam by Singhal Law publications, Universal Guide to LLM Entrance Exam by Gaurav Mehta, Ascent's Law Guide for LLM Entrance Exam by Ashok. K Jain, Singhal's Solved Papers of LLM by Singhal Law Publications and S.S. HandBook For LL.M. Entrance Exam (based on the new syllabus) by Vishal Singh.