MBA Affiliation

Yes, they do. MBA offered by REVA University is a dual specialisation program with electives mentioned below:
Marketing
Human Resources
Finance
Banking and Insurance
Operations Management
Travel and Tourism
The MBA program offered is the integrated programme with the present and future requirements of industries, business firms, and such others. These schools also offer tailor-made programs suitable to industries, banking and other sectors.
MBA programme has been designed to give students the flexibility to choose from various specialisations. The specialisations include field-based industry internship and dissertation. Committed to impart quality education, the schools promote research in inter-disciplinary and multi-disciplinary areas and motivate students and faculty members to undertake industry oriented funded research projects.

Master in Business Administration (MBA) is two years degree course in the field of management. In India MBA degree can be awarded by any recognised university or by a Business School affiliated to any university. Post Graduate Diploma in Management (PGDM) is a two years diploma course offered by the institutes that are recognised by the All India Council for Technical Education (AICTE) and which are autonomous and not affiliated to any university. It is not mandatory that a PGDM is equal to MBA. PGDM institutes accreditation by Association of Indian Universities (AIU) makes an institute's PGDM course equivalent to an MBA.
There are a large number of similarities between the curriculum of both MBA and PGDM. An MBA institute follows a fixed curriculum as it will be based on the university guidelines which occasionally may not be aligned to industry requirements. Autonomous institutes do not follow university standards, so it is have the flexibility to align its curriculum according to industry standards and change in the business environment. Some of the PGDM from IIMs, XLRI, etc. has more value than MBA. However MBA of FMS DU, IIFT, etc. have similar value as IIMs. Students are advised to choose Institute based on its ranking not on nomenclature of degree.
You may refer to the following link for ranking of MBA/PGDM colleges in Bangalore:
https://www.shiksha.com/mba/ranking/top-mba-colleges-bangalore/2-0-0-278-0