This is part of common parlance in India, and means that “it will take time”. And Indians are habituated to wait patiently in long queues for various services.
All good, but of course faster the better, if possible.
I remember during my childhood, going to restaurants and the waiter saying, “time lagega sir” to the adults, which would mean it would take say 30 mins to heat up their oven, prepare the ingredients and work up their magic.
In many recent visits to restaurants all over however, the waiting time has reduced materially, and the waiters still say, “time lagega sir” for a specific dish.
And when you ask how much time, they say 5 to 10 minutes sir.
That’s it! Just 5 to 10 mins. And still their manner of expressing this suggests that people don’t even have 5 to 10 minutes of patience. Instant gratification to a whole new level!