It is widely held that the Mumbai work structure is extremely beneficial and makes you more confident and open.
GSMC has a bond, so you must work for a year after graduation, whereas AIIMS does not have a bond. As one of the most prominent leading institutes in Maharashtra, GSMC has excellent technical infrastructure. It has a higher patient flow, which is very important. It also has more advanced clinical departments. The faculty is an incredible and enthusiastic supporter. It is affiliated with other BMC colleges, giving you more opportunities, and it is also affiliated with prestigious institutions such as Tata Memorial and Wadia Hospital.
AIIMS Raipur is a good choice because of the AIIMS brand, infrastructure, and smaller batch size, but GSMC is still suggested.