Thinking About Switching from 10th Maharashtra Board to 11th Tamil Nadu Board – Need Advice!

Hi, I'm considering shifting from the 10th Maharashtra Board to the 11th Tamil Nadu Board. I can speak Tamil but can't read or write it. Would that be a big problem? Has anyone here made a similar switch or knows about it? I’m also curious about the differences in syllabus, teaching style, and overall experience. Would it be a tough transition? And how’s the admission process?