Hello,
As you know admission to government medical colleges is based on NEET marks is done under two categories-All India quota(15%) and state quota(85%).
With UR category and 537 marks, you might not get any government college through All India quota. Hence you wont get any seat in Delhi because cutoffs are usually 600+.
But, you have  high chances of getting a decent government medical college for MBBS/BDS program in your state through state quota.

To predict your college you can follow this link
https://medicine.careers360.com/neet-college-predictor
Good luck

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