Which college should I choose for BBA among IITM Janakpuri and IMS Noida?

For a BBA course, the college you choose would not matter a lot unless it offers decent on-campus placement opportunities. My cousin has pursued a course in BBA and as per his experience, he considers it to be a highly professional course. If you perform well throughout the course then you can for sure get recruited at a reputable firm after completion. 

You have to put in the required efforts by yourself. If you are considering doing an MBA then good performance during your BBA will be helpful in the future. 

Now coming to the colleges that you have mentioned in your question, I would recommend that you opt for a BBA program at IMS, Noida. I have a few friends from the institute and according to them, the BBA course is quite great. In the 2020 placements, the highest CTC offered by the institute was 12 LPA. 

You can search about several other colleges that are situated in New Delhi or the NCR region. You can take a look at IP University, IMS Ghaziabad, and more such institutes to make sure that you go for the college that would prove to beneficial for your career.