Expected completion date NEET-PG form

There’s a section in the NEET-PG form regarding internship details where I’ve to fill the starting date and ending dates of my internship. I have some weeks extension that I’ve yet to complete because of which my ending date will be different than others from my batch. I’ve put the extended date for now, but in case it changes and gets prolonged more because of any issue, will that cause a problem during PG counselling? If the date on internship completion certificate and the ending date in NEETPG application don’t match, will it cause a problem?