I am from Karnataka and someone has told me that if I get a dental seat then I cannot participate in Ayush round. Is it true?

Everyone has right to chose as per constitution. Thing is after the final counselling of BDS you may need to pay the bond fine (if was signed). You have no restrictions for any stream counselling. But in some cases you may need NOC to take part in counselling and that may be at price of your BDS sea