DGCA,India has sought for strategy from all airlines in india to phase out expatraite pilots in phased manner.. there will be demand for experinenced captains , Instructors and examiners for few more years..250TT cpl's cannt replce all existing expats captains..it will take some more years..but already lot of Indian CPL holders in market without job..Indigo has contract with some simulator centers for FO program..but Indigo cannot give line training as promised by these agencies..due to insufficient of Trainers and also its impossible to accomodate all..one thing for sure, whether its Indigo or any other airline..they will give preference for Indian nationals..so other national prospective A320 Fos..think twice before investing money for line training with these agencies ( for Indigo or any other airlines in INDIA)..There will be always demand for expat trainers ( TRE /TRI) in india ..for expat captains few more years ...not for FO..
But one thing its good business for STROM, CAE, SIMcen etc...