Hello there,
There are four colleges in Kerala which offer one year diploma course in Journalism. They are as follows:
1. Creative Hut Institution of Photography, Kottayam
2. Centre for Development of Imaging Technology, Thiruvananthapuram
3. Manorama School of Communication, Kottayam
4. SCMS Institute of Mass Communication, Kochi
These are few colleges offering Diploma course in Journalism. You can apply there. The total fees ranges from 1.5lakh to 3.5lakh.
Hope this answer helps you.
Good luck!!