Both the colleges are different from each other in terms of rules and the curriculum. Having to know some people in both of these colleges, here are some comparative points you can refer to before making a decision.

• If you are an early riser, Narsee Monjee is the best as the classes start in the early morning. On the other hand, classes at St. Xaviers Kolkata are usually conducted in the evening from 4 pm to 8 pm. 
• Choosing between the two also depends on your perspective whether you want to be in your comfort or you want to see a change in your schedule.
• CA is not an easy subject. One of my friends has cleared IPCC and it will require a lot of dedication and hard work. 
• Coupled with B.Com it becomes more challenging. But if you are well prepared, it will not be a problem.
• The quality of education and brand name is at par for both the colleges, however, if you are an average student then Narsee Monjee is a better choice. 
• This is because you can attend the classes in the morning itself and finish by noon so that you can join coaching in the evening. 
• Both the colleges demand a minimum of 75% attendance however, in recent years Narsee Monjee has been allowing students with at least 50% attendance. So again the decision depends on your dedication towards CA.
• Being in a morning college also makes you disciplined. You will be able to work on a routine.

Overall, CA is one of the prestigious career perspectives in India and there is a huge scope for CA graduates. Thus, you must choose the college wisely. Both of these colleges stand apart from each other In terms of schedule and even location. Know your determination towards your goal and you can easily make a choice.