Hello shivam

First of all Congratulating you on your nice performance that you deserve both of the nice college but if you were to take my opinion then I would suggest you to take admission in ims Ghaziabad since it is with in top 10 private institutions under upsee, and if you are getting an opportunity to persue bms/bba then you should definitely take admission. Aryabhatta is also a good college but ims Ghaziabad has an edge over aryabhatt because of its placement scenarios.

Good luck for your future:) 

Feel free to ask if you have any further queries.