Who knew grabbing a bottle of Coke in the checkout line at the grocery store could create a brief pause? It happened to me recently as I looked at the cooler of ice-cold sodas and drinks in the case.

The Indian soft drink market is witnessing a major battle between global giants Coca-Cola and PepsiCo and Mukesh Ambani's Campa Cola, as these companies have introduced a new line of products in the ...