Hii!
Congrats for scoring great marks in 12th.
As you have commerce without maths, you cannot get Bcom (hons). But Bcom (pass) has no drawbacks.
You can also get many good colleges in DU for bachelor of arts and you can do specialization in any specific subject as well except economics as it requires mathematics in 12th.
Bcom (pass) will be a good course to choose as you belong to commerce background.
You might have to wait for the 2nd, 3rd or 4th cut off lists to get into a good college, but don't lose hope as you will definitely get one.I am providing you the link to DU's cut off list of last year where you can check the colleges as well as the cut off according your category ( general, Sc,St,obc, etc). You can get an estimate.

http://www.du.ac.in/cut-off.html

Hope this helped. All the best for your future.
Thank you

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