Hyy B.Ladusangi
For preparation of Human Development Entrance Exams we suggest you to take tips from your seniors or ask your friends.
You can also search on Google for study materials and last year's papers or you should check in market there are various books available in the market for Human Development Entrance Exams.

Hope this helps you out
For more information or queries please ask in comment section
Good luck for your exams :)