Bachelors

Hi Gautam,
After completing Bachelor of Journalism and mass communication course, you can go for Master of Journalism and Mass Communication course. Some PG diploma courses in Journalism and Mass Communication are also equivalent to it. Some of the course that can help you make a career in journalism are
Master of Science in Mass Communication
Master of Media Studies
Master of Arts in Mass Communication
Master of Communication Studies
Master of Arts in Journalism
Master of Communication & Journalism
The eligibility criteria may vary from institute to institute.
However, graduates in any discipline can pursue this course program.
Mudra Institute of communications- Ahmadabad
Asian college of Journalism- Chennai
AJ Kidwai Mass Comm Research centre, Jamia - New Delhi
IIMC - New Delhi
Xavier Institute of Communication - Mumbai
Film and Television Institute of India - Pune
Symbiosis Institute of Mass Communication - Pune
Job Prospects:
The opportunities for journalists are endless and at the same time the job has become more challenging, as the new world is proving the adage that "the pen (and the camera) is mightier than the sword." simple reporting of events is no more sufficient, more specialization and professionalism in reporting is required. You can be successfully employed in one of the below mentioned agencies after the completion of your course: -
Newspapers
Magazines and Periodicals
News Agencies / Bureaus
Regional Press Bureaus of International Papers / Agencies / Networks
Ministry Of Information and Broadcasting
Press Sections of Public And Private Sector Companies
As Free-Lance Journalists
Journalists Specialize In Diverse Areas, Such As Politics, Finance And Economics, Investigation, Culture And Sports For Newspapers And Periodicals
Hope it helps. Please feel free to revert.
Wish you luck.

Actually, mathematics is the subject which is common for any domain [exceptions can be taken for one or two fields] that is to be done by a student in the first year of under graduation. Your main course will be from second year of UG such that even though you choose any field there will be a subject called mathematics in first year. Any how you have done your intermediate in IT domain as well as Bio domain, it is better to opt B.Tech because you have Computer science, Information Technology and Bio-technology branches in engineering. Based on your interest you can choose one of them and proceed forward.
I hope you will take a wise decision! All the best.