It probably is a better solution (I use one myself and my only gripe is that I wished I'd known it was an option as a teenager and not already been 30 when I discovered them), but if the menstrual taboo is as strong there as that article implies, then it may be an even harder sell than a man designing a napkin machine.

There's a lot more potential hand-contact with menstrual blood when using a cup than pads, and while someone in the western world might scoff at the idea that using a cup could "ruin" a women's virginity, that could be a real concern for an unmarried girl in rural India.