The most convenient way to reach Fortis Hospital in Shalimar Bagh, Delhi from Indira Gandhi International Airport is by taking a taxi or car rental service. The estimated distance between the airport and the hospital is around 20 km and it would take around 45 minutes to an hour depending on the traffic conditions. You can also take a metro from the airport to the nearest metro station ‘Azadpur’ and then take a bus or auto-rickshaw to Fortis Hospital. Alternatively, you can take a bus from the airport to the hospital, but it might take longer than the other options mentioned above as the bus routes might not be direct and would involve multiple transfers.