Hey.
The marks required to get admission in a medical college through NEET varies a lot according to your category and quota. The cut off varies a lot in different states under the State quota and well the All India quota. Hence your category, state etc would determine the marks required by you to a lot of extent. But according to the previous year trends, for admission in a government medical college  in Punjab under the State quota a score above 520 was required in 2018 and a score above 540 in 2017. Hence a score around this range would be safe. For admission under the All India quota in a government medical college a score above 560 would be safe. But this is only an estimate. It might vary a lot depending on your state and category.
Best of luck

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