The lunchbox in keeping it postive

A movie from India. It seems that in India (and I've heard it's also true in NYC), workers don't go out to lunch, but lunch is delivered regularly to them in a sectioned container like a tower. The container is metal and is housed in an insulated carrier.

The simple premise of this movie is that a woman, who is making lunch for her husband finds that the food she is preparing is going to a stranger. She and he start writing notes to each other hidden under the bread... no sauce.

Over time, they become more and more open in their discussions of their lives. He's a widower; she's in an unhappy marriage.

The movie is beautiful and sweet, but leaves the viewer hanging at the end. Will they ever meet? Will they "run away" together?