All are the decent colleges. As per the analyzing report of Careers360 Rajagiri Centre for Business Studies, Cochin has AAA+ rating which means good, SCMS Cochin School of Business, Cochin has AAA+ rating which means good. This rating is based on the research of the colleges on various parameter like Placement, Faculty & Industry Exposure etc. You can check the genuine reviews of the colleges with the given below links.

https://bschool.careers360.com/colleges/rajagiri-centre-for-business-studies-cochin

https://bschool.careers360.com/colleges/scms-cochin-school-of-business-cochin

https://bschool.careers360.com/colleges/amrita-school-of-business-coimbatore

https://bschool.careers360.com/colleges/amrita-school-of-business-kochi

Good Luck!