Dabbawalas are more involved with transporting home cooked food to the worker. The worker leaves early in the morning and some time later the spouse will have a hot meal packed up. The dabbawala will come pick it up and aggregate orders going to common destinations, move it by train, etc. I presume Swiggy is only for restaurant cooked food.
Secondly the dabbawala jobs are more like a stable union job. You don't get the top money but everyone looks after each other. Of course with time customer preferences may change towards restaurant food. Or maybe workers start using plastic containers and microwaves.
"The dabbawalas have deeper reasons for doing it. Serving their customers is like serving their god.”
It could be because they see their purpose as delivering food to people on time and it doesn't seem like the nascent services have figured out how to do that well at scale - thus they may make more over there but are less fulfilled in their life mission?
Swiggy and other delivery startups are more demanding in work hours (to make good money you need to do late nights weekends etc) and also needs you be able to drive a scooter . Also these startups need you to be able use their mobile app, maps and gps and find the customer these require literacy and few other skills Dabbawalas may not have readily.
They don't live in Mumbai usually and if they do in the slums. They live on the outskirts and commute by Mumbai Local.
In main areas of Mumbai that amount may not even fetch a small sized windowless room (no kitchen, or living space - just a room and a common washroom outside) and I am not even talking about "posh" Mumbai.
I took the fact that it appears to be a good wage from the article; I am not familiar with the local market so I couldn't double-check that myself. However, they do appear to be thriving and providing a good service despite the local companies supposedly paying more so something doesn't add up. If the companies truly paid more then the whole system would breakdown as all their couriers would jump ship to the delivery startups.