Dear student, if you are locking top colleges first while you don't qualify the cut off criteria of those colleges . It is sure that you won't get seat and you are wasting your chance to get the college you deserve to get. By doing this you are wasting your chance and there's a probability that you don't get a good college in second round counseling. I hope this was helpful and for your further reference I am attaching a link so that you can check the cut off if different government medical college and then choose wisely which college you should choose. 

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-cut-off-for-government-colleges/amp

I hope this was helpful