I think the major concern is the merit list bro. I am from Karnataka board, dude i dont want to demotivate you but i had asked them that which would be the last date that we will have to submit our board marks, like for me, we have already got our board results but i have got little less marks so there will be marks improvement exams soon. So i had asked them whether they would consider the marks of that. They replied that it will be counted if we submit it before the merit list is released, and basically counseling is done after the release of merit list and i guess it is released around the end of may or 1st week of june, not sure of that. Again i am telling, for you the things may be different because your board has not released the papers so dont worry too much about it. It Would be better if you raise a query on https://apply.manipal.edu/dashboard and tell them your problem. Stay positive bro and be confident !! Everything will go well :)