An employee pours milk intoi a glass at a roadside stand. (Photographer: Dhiraj Singh/Bloomberg)

Spiced Buttermilk? Coca-Cola Turns to Grandmas' Recipes in India

(Bloomberg) -- First came a type of cumin-flavored sparkling water. Next up is a mix of unripe mangoes and spices. After that could be buttermilk. Then maybe some potions based on a 2,000 year-old ...