Colleges in Aligarh

The eligibility criteria for giving entrance examination is as follows:
For M. Sc. (Zoology) : B. Sc. with Zoology as the main subject and any two of the following subsidiary subjects-Botany / Chemistry / Genetics / Biochemistry / Biotechnology / Fisheries or
B. Sc. with Zoology as one of the subjects of equal value along with any two of the following
optional subjects- Botany / Chemistry / Genetics / Biochemistry / Biotechnology / Fisheries.
Note: The candidate must have secured at least 55% marks in zoology as well as 55% marks in
aggregate of zoology and subsidiary/ optional subjects.
For B. Sc. (Hons.) with main subjects Zoology :
Senior Secondary School Certificate or an equivalent examination with at least 55% marks in
aggregate of English, Physics, Chemistry and Biology/Mathematics.
Note: For admission to B.Sc.(Hons.) with Botany/Zoology as Main Subject, the candidate should
have passed Biology at the qualifying examination.

Being a student of Aligarh Muslim University, I find the following benefits:
1) Teaching standards: Teachers are actually well qualified (PHDs from IITs, IISc and abroad). They have abundant knowledge.
2) Free time/Less workload: Workload in general of every department is not much and if you have time management skills, you can crack National (GATE, IES or CAT) or International (GRE, TOEFL, IELTS or GMAT) level exams.
3) Fees: ZHCET is the cheapest institute that provides a quality education.
4) Book Bank/Department Seminar library: It gives a stack of books to each student every year at a very nominal rate to read and return after completing that session.
Other general benefits:
1) A world class library. It is the second largest library in Asia.
2) Fully WiFi enabled campus with dedicated computer labs at computer department and hostels.
3) Various clubs like horse riding, swimming, basketball and gym.
4) Various extra-curricular activities like drama, music and more.
5) Benefits of being a central university.

Aligarh Muslim University (AMU) conducts an entrance exam in order to provide admission to candidates in engineering and architecture courses offered by it. These are the courses in which admission is offered to candidates on the basis of their scores in AMU Engineering Entrance Exam (EEE).
Start with NCERT books then go for these books for strong fundamentals and practising questions
Physics
Concepts of Physics 1 & 2 by HC Verma
DC Pandey, the one with only questions
Chemistry
Modern Approach to Chemical Calculations by R.C. Mukherjee
Concepts of Physical Chemistry for JEE Paperback 2014 by P. Bahadur (Author)
Organic Chemistry, 7e Morrison Boyd
Maths
Mathematics Vol. I & II by R.D.Sharma
Problems Plus in IIT Mathematics by A.Das Gupta
Objective Mathematics by S.K.Pundir M.L.Khanna
Apart from using books, you must practice mock exams to develop a proper strategy to attempt the question paper. Analyse the mocks you solve and learn from the mistakes. Also, pay attention to time management.
All the best.