Hey Aditi , for 1st round last date for submission of application form is till 21st june. For 2nd round dates are not released yet but it maybe in the month of July. For for information check the given link :-
https://medicine.careers360.com/articles/karnataka-mbbs-application-form
Hope it helps.
All the best!!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile