Hello , 

As your query is you want to know about the cut-off marks for admission into undergraduate degree for economic (Hons) .

I would like to tell you that, since you haven't mentioned the college you are looking forward to take admission, therefore I can't help you in that depth , but yes of course I can tell you that , if you want to complete your degree from a reputed college, so you have to score at least more than 85% in your 12th exam. 

After that you'll be definitely eligible for taking admission in the best all around college for completing you Undergraduate Degree with Economic.

Further, if you let me know the college you are looking forward to take admission, if you let me know in the comment section below I will definitely help you with that.

I hope your query is solved.

Thank you.