Hello,

congratulations on your score!

A  NEET score of 509+ you have great chances of mbbs seat at karnataka government colleges

There must be some sort of misscomunication, as a score of 509 you have high chances of getting into koppal institute of medical sciences karnataka.(as the cutoff is lower than that for other states)

However as you know that cutoff changes every year depending on various factors like difficulty level of the exam questions , number of candidates appearing and the recent COVID19 crisis etc.

You can use careers360 college predictor to know the colleges you can get at your NEET score;- https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer

Hope this helps