Hi, according to your marks in neet your general rank can be somewhere around 1,20,000 - 1,32,000 according to previous year ranging.According to your rank in this year neet you can't get a seat in good colleges of Karnataka according to general rank category.All others category wise ranks are tabulated in the link given refer to it and check your seat possiblity.

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-cutoff-karnataka/amp

Hello,
With your score of 344 in NEET 2019, you have a tough chance for the Raichur Institute of Medical Sciences, Raichur and Gadag Institute of Medical Sciences, Gadak. You do not have chances for the other government medical colleges.
However you have fair chances for all the Government Dental Collges. All the best!