Physics Spl

An Ethical Hacker must have a Bachelor's degree in Information Technology (B.Sc. IT, Computer Engineering etc.) or an advanced diploma in network security.
A certification from a reputed institute enhances the chances of getting hired by some big names in the IT sector. International Certifications like-
1. Certified Ethical Hacker (EC-Council)
2. Certified Hacking Forensic Investigator (EC-Council)
3. GIAC Certified Penetration Tester (GPEN) by SAN and GIAC
4. Certified Intrusion Analyst (GCIA) can further improve the job prospects.
Besides the aspiring, candidate needs extensive experience in the area of network security and a working knowledge of various operating systems. Areas of expertise include a sound working knowledge of Microsoft and Linux servers, Cisco network switches, virtualization, Citrix and Microsoft Exchange. A working knowledge of the latest penetration software is essential.

Firstly, it doesn't really matter from which college you are(nor does its ranking). all you have to do is get a Be-Tech degree with 60% aggregate and clear JEST.
Now simply looking at the sample paper/syllabus will not get you through the exam. JEST covers the entire B.Sc physics syllabus and that's not a walk in the park.
books, books and more books are your only tool and so start READING.
Given below is a link from where you can get the list of recommended books for JEST
http://entrance-exam.net/syllabus-and-reference-books-for-jest-physics-exam/
My personal advice for the starting reference would be the "The Feynman Lectures on Physics." .