Dear Vijayalakshmi, 

                       Its not just for UOH integrated M.Sc entrance exam, but for all the exams, You have to be Confident and Positive, no matter what you are¡ So, don’t be nervous before putting any effort. The entrance examination for integrated M.Sc programme in university of Hyderabad generally contains 100 questions(1 mark for each), 25-25 each for Biology, Chemistry, Mathematics and Physics. All  the aspirants will have just one paper, which will be common for all the branches, and you can attempt either three or all the four sections. The total marks will be given out of 75. The level of difficulty of the question is average. NCERT books are good. You May read them thoroughly for clearing basic concepts along with your preparation for boards. Make a good understanding in the basic concepts of the every subjects. Solve previous year question papers. Give more time to the portion from which most of the question has been asked in those question papers. Give some mock test. Not only practice the questions, but also try to learn its applications. You will surely get good marks. Don’t loose hope. If you work hard, You will definitely get a seat. Devote more time in the section in which you are weak.  One the day of exam, start with the section which you are confident. Probably, UOH entrance exam will be held in the month of May. You have enough time to study and build yourself for the competition. You can also refer these books:-

For Chemistry :

NCERT is enough, but you can also study from these.

Modern ABC of Chemistry by S. P. Jauhar

Pradeep’s Chemistry

For Biology :

Trueman’s Elementary Biology

Pradeep’s Biology

For Mathematics

A problem book in mathematical Analysis  by G N Berman

Mathematics by R. D. Sharma

For physics

Concepts of Physics by H. C. Verma

All the Best.