BCA

Hi!
It is time you put your worries aside, because journalism colleges welcome all - irrespective of which subject you studied during your graduation. To begin with you need to keep a close check on the form dates of all the good colleges which offer post graduation in journalism. For starters, Indian Institute of Mass Communication, Symbiosis (Pune), Jamia Millia Islamia, Times School of Journalism (Delhi), Asian College of Journalism (Chennai) and St. Xavier's College (Mumbai) are some of the best ones in India. There are others like Makhan Lal Chaturvedi University (Bhopal/Noida), Aligarh Muslim University and Banaras Hindu University - but despite having big names in the country, these universities aren't a good match for those students who are on a look out of placements.
The ones I mentioned as good offer placements with decent salary packages. Moreover, all you need to have handy is English/Hindi (whichever language you prefer) stronghold and current affairs on your tips. Some college entrances ask very basic Maths questions and history of media - which can be studied from any competitive book (I guess it was Arihant Publications is the best one).
Good Luck!

ELIGIBILITY CRITERIA for BCA :
10+2 Science stream students with Physics, Chemistry and Mathematics subjects, who have passed board examination from a recognised board, are eligible to pursue this course. Minimum marks criteria may exist, in case of many Institutes. It may vary between 40-50% marks in PCM (Physics, Chemistry and Mathematics) subjects. Also, in case of some Institutes, students must also have appeared for state level entrance examination to be considered eligible to apply for the course.
* You need to apply for different colleges according to their application dates and procedure, for colleges check the link below :
https://www.shiksha.com/it-software/colleges/bca-colleges-india