Sir I have 545 marks and belongs to ews category what is the chance of getting a seat?

Hello dear student,  first of all congratulations you have scored enough good marks and without using your category you are eligible to get an admission in any good government medical college. Just be free and there are good amount of chances that you can grab a seat with this much marks . Rest here I am attaching a link hope that will help you to check for your desired college

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-cut-off-for-government-colleges/amp

I hope this was helpful. All the best and I hope you get a good government medical college.