Hi Gokul, 

Government medical college seats for the score of 340 is a difficulty, taking into consideration the heavy competition this year. 

You can try for government BDS college, that has more probability. But still would be quite uncertain. 

While AYUSH courses like BAMS, BUMS, BNYS, BSMS,BHMS are most easily available for your score. You can definitely try and be sure of getting into any one of them. 

All The Best.