Hi, this year the cut off percentage for general category and OBC in BHU entrance exam was 35%, which 126 marks out of 360. So if you have scored marks equal to or around 126 then you have a little less chances of getting admission but if you have score around 200 then you have a decent chance. Unfortunately, providing you with definite cut off rank wouldn't be possible as the the cutoffs that are set are based on certain factors like the number of applicants, number of seats available in the course, past cut off treand, difficulty level of the entrance exam etc. but last year the cut off rank for M.A Economics was 596 for general category

Hope this gives you a brief idea. Good Luck