I suggest you do your class 1 medical from AFCME , New Delhi as they are quite helpful and will help clear all your doubts . They usually have the final say when it comes to special medical cases . Ofcourse you can always appeal their decision with the DGCA
Make sure you bring all your medical records with you when you go for a class 1 medical .
The IndiGo cadet program also pays a stipend during training so that should help offset some costs ( I am not sure how much it is )
For education loan have a look here . I believe they have some experience with IndiGo cadets .
:: Credila’s Education Loan India Web Site ::