For an MCA, NIT Trichy will be better. It is known for its technical courses. NIT T will give you better learning opportunities for MCA. The institute offers hands-on learning opportunities. You will learn through assignments, presentations, tests, etc. 

NIT Trichy MCA placements are pretty good. Every year around 90-95% of students get placements from the branch. The highest CTC offered in the recent placement drive for MCA was INR 40 LPA. 

JNU is a better option, especially for postgraduate degrees. JNU has a different aura altogether. The environment on campus is extremely accepting. You will meet people on campus who are intellectuals, readers, writers, and speakers. Simply being on JNU campus can be rewarding. It has a different culture entirely which motivates the holistic development of personality. JNU has an excellent faculty base. 

In financial terms as well JNU is a better option. The course fees and hostel fees are lower compared to DU. As per JNU University course fees, an MSc degree costs around INR 692.   

To say, one of these is better than the other will be an oversimplification. You should choose BHU or DU based on the course you are interested in. Here is a streamwise comparison of DU and BHU. 

Arts - For English and Economics, DU is better. BHU courses are better for Sanskrit, Hindi, Geography, and Philosophy. For the rest of these subjects, these institutes are at a similar level. 

Science - BHU is slightly ahead for most of the science stream. 

Commerce - For commerce courses, DU is definitely better. 

Engineering - It won’t be fair to compare IIT BHU with DU. The former is way ahead of the latter. 

Management - FMS is a tier 1 B-School and arguably the best non-IIM school in the country. IMS BHU ranks nowhere near FMS. 

Law - For law degrees, DU has a slight advantage because of its location. 

Medical - IMS BHU is one of the best medical institutes in the country. 

Academics are more or less the same at BHU and DU. However, big names like St. Stephens, SRCC, LSR, etc. are a little ahead of BHU in terms of teaching quality. BHU offers better research facilities, especially for science courses. DU is way ahead of BHU in terms of corporate jobs and civil services. 

BHU offers a better campus experience compared to DU. But if we talk about location, choosing a metropolitan city, that too Delhi will be more advantageous. You will have greater exposure and opportunities. 

If you are getting into one of the top colleges at DU. You should go for it. If you are getting an average college, it’s still better to prefer DU for Commerce, Economics and English. BHU science faculty is good. If you are interested in a Science degree, you can choose BHU. 

The main disadvantage of pursuing a B.Com P instead of B.Com Hons is the syllabus. Delhi University B.Com Hons syllabus has a perfect blend of theory and practical subjects. You can also specialize in some subjects. B.Com Hons covers the subjects in more detail compared to B.Com P. 

This is why recruiters prefer B.Com Hons students over B.Com P students. If you are planning on pursuing CA or CS, then pursuing B.Com (H) will be better.