Hello Atul , From some research on internet I found that If you are talking about the counselling of NEET then there is no option for modification or edit for category in NEET UG category column but if you talk about anything else then you can fill the form with ews category that will be good for you.
Hope it will be helpful for you :)
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile