What are DCGA requirements?
Aviation Atlanta has a solid reputation for flight training in the Atlanta area, claims to be an M-1 visa school whatever that is, and they also charge top price for training. If you are looking for more economical schools that cater to international visas, most of them will be in Florida and California. KPDK has some of the most expensive flight schools I have ever seen, not a single one is known for being economical.