Yoga had been in India forever but saw mainstream adoption after the west found it appealing. What else is an under hyped Indian undertaking that could blow up given the right catalyst?

Desi foods like aachar, our batters, snacks especially savouries.

Indian version of trending western adoption
Achar - Probiotics Ayurveda - Herbal medicines Indian Toilet Seats - Healthy Posture Bhajan - Sound Healing Upwaas- Intermittent Fasting Shubh Shubh Bolo - Manifestation

Martial arts