Hi shahbaz, 

If you had got a seat in the first round of counselling then you should have it and get admitted to the college. 

As if you did not get the admission there on your seat then it will be  get lost from you and that seat  will be included in the second round of  counselling for all students. 

You had got seat in first round then you have scored good in neet. So participate in the second round of counselling may be you will get another seat there. 

If you will not get a seat in second round then try for the mop up round. 

For any other information you can ask from us.