Hey Gaurang.

The cut off rank and marks respectively  for admission in King George Medical University, Lucknow under the State quota for various categories in the previous year for the General Category was a rank of 6,573 and 572 marks. The cut off For admission under the All India quota  for the General Category was a rank of  893 and 613 marks

Hence you would require a range of marks around this for a fair chance of admission here.

Best of luck