Hello Aspirant.

Dam Affected Certificate is a bill to consolidate and alter the legislation relating to the rehabilitation of people impacted by specific projects in Maharashtra, as well as items related to or incidental to such projects. There is dam affected reservation in Maharashtra. The benefit is that the marks you need to score is less than few of the categories and there is a reservation for the same. And if your score is around 500 in NEET UG there are chances for you to get a government seat for MBBS in Maharashtra.

Yes, there are chances for you to get the admission in government college with 489 rank and as you said that that you have the dam affected certificate so you'll get the benefit of that also in your admission process. But the cut off varies upon various factors and that's why they are different in every year.

GOOD LUCK, STAY MOTIVATED AND HOPE THIS HELPS.

Thankyou.