According to your marks the possibility of getting the govt. seat in MBBS in karnataka is less because the closing marks for the medical admission for OBS category was 347 in Kodagu institute of medical sciences, Madikeri. In govt. dental colleges you can have the chance but you fill the choices for MBBS you might get the seat. Also a link is provided where you can find out the cutoff marks for the govt. colleges in karnataks for various courses which will help you a lot in admission process.

https://medicine.careers360.com/articles/neet-cutoff-karnataka/amp#referrer=https://www.google.com