Hello Ayushi, The last date to update corrections in NEET applications was 31/05/19. Corrections were being allowed for:

• Father's Name
• Mother's Name
• Date of Birth
• Gender
• Category 

But corrections were being accepted only till 31/05/19 upto 5:00 pm as per official notice by NTA. So it has already passed and henceforth no further corrections would be accepted. 

No 

You should have changed it while registering itself 

Now you cannot change it 

So don't worry much