It's not about the numbers in the catchment area. It's about the numbers of people in the catchment area all wanting to go to the same place. EK has the convenience of double daily. PK was just 2 or 3 weekly going to the community that has 4 times as many potential customers as EDI. Perhaps you are going to tell is the EK is not aware of those finding as well.
For EDI-India, you want to have a limited frequency VS operation going up against both QR and EY...what's in it for VS apart from red ink? They were loathe to even contemplate MAN-HKG which had the potential to not need connections at either end given the size of the market