Hello 

For the year 2017 UR Category state rank 114 who scored 563 in NEET 2017 was the last candidate to be alloted this institute in the first round of state counselling.

We can assume the least marks required but then the final allotment for the second round was somewhere around 550.

Lets hope for the best if you have got a rank nearby as per the previous year's marks.

Thank you 

It would be tough to tell you the exact for 2018 but as per the last year you should have more than 500 as a general category to get a Dental seat in RIIMS Ranchi.

Good Luck!