Business Management Studies

With 80 percentile in CAT General category, don't rush for MBA, get work ex and re-appear for CAT.

Yes, you can definitely go for a psychology course or degree after completing your B.A. Although be sure about what you wish to do after your psychology Masters, in the sense of being a counselor, therapist and there are various other options in the field of psychology.

https://www.shiksha.com/university/csjm-chhatrapati-shahu-ji-maharaj-university-Kanpur-23593
Refer the link.

Minimum qualifying CAT 2018 overall percentile is 80. Minimum qualifying CAT 2018 sectional percentile in each of the 3 sections is 70. Above 90% marks in Class 10th will get you to top rating of 10 (Rating score A) irrespective of your stream. Top rating of 10 (Rating score B) for Class 12th will vary.

https://www.shiksha.com/college/cms-business-school-jain-deemed-to-be-university-gandhi-Nagar-Bangalore-38233
try this.

As per the additional eligibility criteria and basis of selection, Aggregate of 60% or more marks in the qualifying examination in four subjects: English, Mathematics and any two other subjects included in List B.
Selection will be based on the rank computed from the combined weighted average of percentage scored in the entrance test and the percentage scored in the qualifying examination where the weights are: Entrance Test: 65%, Qualifying Examination: 35%.
Hence math is compulsory here so you can not apply.

BML Munjal University reviews regarding their MBA programmes are quite good. The students are exposed to a curriculum that is contemporary, market-oriented and co-designed by Imperial College London, one of the most respected world-class universities.

Here are the important dates for admission of 2020 batch:
Nov 1 - Dec 11, 2019
CMAT 2020 Registrations (extended)
Dec 24, 2019 - Jan 24, 2020
CMAT 2020 Admit Card Download.

Try visiting college website or inquire them in person.

https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india-accepting-kmat/2-2-0-0-9238
Refer the link.