The Karnataka MBBS 2018 merit list will be published after the conclusion of the document verification session and will include all the candidates who have applied for admission to medical and dental courses of the state and have verified their documents. 

You can find more information in the link below (check the schedule for document verification and other dates so that you do not miss any deadlines):

Https://medicine.careers360.com/articles/karnataka-mbbs-merit-list

Good Luck!