As per the reviews, Kalpana Chawla GMC had greater placement opportunities than the Rajendra Prasad Medical College. At the same time, infrastructure, cafeteria and classrooms and campus of Rajendra Prasad GMC is bigger than Kalpana Chawla GMC. Teaching wise ill tell both are good. At the end of the day you will have both advantages and disadvantages of each one of them. So you have to be the smarter one making the perfect choice which suits you personally. 

Best wishes. 

Thank you.