Sri Ramachandra Medical College and Research Institute, formerly Sri Ramachandra University, is an institute deemed to be university located in Porur, Chennai, India. SRIHER consists of nine constituent colleges and faculties with more than 6000 students.
M S Ramaiah Medical College (MSRMC Bangalore) is one of the prestigious medical colleges of India was founded in the year 1979 by the Gokula Education Foundation and started by Sri M.S. Ramaiah.
According to the ratings of Careers360 and many other sites, Ramaiah is actually better than SRMC.
But whatever be the scenario, any college you join, you'll be placed in a well off hospital as India has less amount of doctors than required so you don't have to worry about college placements and you'll find a suitable job after you're done with your degree.
So now it's upto you to choose whether you want to live in Chennai or Bangalore as that should be your main criteria to select a college.
Hope this helps, all the best for the future.