You can do 1 thing

Open twitter make twitter account

Go on hrd minister page , nta page , newsportal page and comment for

#Neet2020correction

Or whatever exam u want

.. Last time just because of this drama , they open the correction facilities in may

You can contact to mcc counselling phone no,they can allow you to change your ews status

Unfortunately you cannot change your Category during the correction window either. NBE has disallowed any corrections of basic information such as Name, Date of Birth, Nationality, Gender, Email Id, Mobile no#, Photograph, Signature, Exam City and Category. To avail EWS reservation, you may have to re-register using another Email Id and Mobile no# and fill in another application which means its altogether a new payment again. But you cannot change your Category.