Hello dear , both college are best ,they have their own specialty and goodness. It's depend on you in which college you prefer . Otherwise both are reputated , and good infrastructure also they have good ranked . Fees are also different like rcm Bangalore pgdm fees have 7.9 lakhs approx and rsb Chennai fees for pgdm have 6.6 lakhs approx .
hope you are doing great. As per your query I would glad to tell you that rsb is very well named business school with a ranking of 8th in the best emerging bschools in time of india . Faculties are very well experienced and they also invite many visiting faculities to give knowledge to their student . Their almuni network is also very strong due to good TPOs . Moroever , the placement ratio is almost 100 percent ,the average package goes around 6 lakhs and highest went upto 7.8 lakhs
Hope you found this answer helpful. Good luck for your future