Political Science

No brother. TMU does not provide this course.

Hello Siddharth,
You have neither mentioned the college nor university. Some universities have papers of previous years alongside answers on their website but many don't. In such a scenario, you need to join one of the coaching classes since they procure such papers for the benefit of their students. In such a scenario, the only recourse for you is to join one of the coaching classes.

Yes, any student having an aggregate percentage of 50 is eligible to get an admission of journalism and mass communication, both UG and PG.
Here are details of this course:
http://www.cuchd.in/journalism-and-mass-communication/master-of-arts-mass-comm.php

You can refer the following books:
Rajani Kothari: Politics in India ( Oriental Black swan) ( for Indian Polity ). Nirja Goal Jayal and Pratap B. Mehta: Oxford Companion to Politics in India (for Indian Polity ). Paul Brass: The Politics in India since Independence ( Cambridge India) ( for Indian Polity ). Indian Polity: M. Laxmikant ( MCGREW HILL) ( for Indian Polity ). Nirja Goal Jayal and Pratap B. Mehta: Oxford Companion to Politics in India (for Indian Polity ). Paul Brass: The Politics in India since Independence ( Cambridge India) ( for Indian Polity ). Indian Polity: M. Laxmikant ( MCGREW HILL) ( for Indian Polity ). .

The minimum marks required vary form 45% to 50% in graduation and may vary for different universities.