Need some help with preference list( gen male)

So I'm aiming for economics honours and my score wasn't particularly that high , maths really messed it up and in the end the final aggregate came to about 758/1000 , which if I compare it to the last year's cut offs can get me Aryabhatta and motilal nehru college , idk much other colleges I can get around these marks I'd like some help in knowing what I can realistically aim to get with these marks for economics honours and also how should I rank said colleges for according to my course , any help will be greatly appreciated!!!

Asides from that , could anyone let me know if bsc honours mathematics is a good course? I checked the last year's cutoffs of that and according to those I could probably get into north campus with the marks I have but I'm not sure if it's worth it to just do it because I'm getting a good college for it , what can I pursue as a career after bsc honours mathematics and is it worth it to do that rather than eco honours from some lower sc colleges?