If you have a LLB, the M Phil Entrance for International Studies is very much easy to crack. Still the centre doesn’t have any bias to other background students and you can find students from different background in the centre. Start with the basics, go through some of text books on international law and major cases. International Humanitarian Law, Refugee Law, Water Disputes, Penel Code, International Court of Justics and Third world’s accessibility to the international law are some of the major hot topics in the entrance exam. Though there is not short cuts to success, the classic book on International Relations International Law by Malcolm Shaw will help you a lot for cracking the entrance. The book is covering the whole examination syllabus for International Legal Studies. Check the previous question papers and focus on repeated questions there.