if you colleague is Flying Sunday and hasn't got any visa sorted yet then there is no way he is getting on any plane.
I have no idea if your evisa would be processed in time to be in India on Wednesday but I would say it is extremely unlikely.
Thanks, she's found a 24 hour provider so we'll see and if not just buy another flight. I have until Tuesday AM which would be the 72 hours promised so I reckon I'll be OK, the joy of a last minute flight booking is that it's fully flex so can shift up to 6 hours before flight.