Hello Renita!

I totally get your feeling. However, once NTA has declared the results, revaluation is not entertained by NTA. OMR sheets are scanned by machine with specially designed software for the same purpose. There is no way you can apply for revaluation. NTA had kept the window to challenge OMR sheet and it is only during that period, students can challenge the key answers or their OMR responses. I would suggest you to once again check the OMR sheet response and compare with key answers. Check if the question paper code and the OMR sheet code is same or not. The chances of technical glitches is very unlikely. However, there have been several complaints from students regarding the same.

https://news.careers360.com/neet-result-2020-more-complaints-surface-despite-nta-assurance

Try lodging a complaint on NTA helpdesk. That is the only option left now,