Anheuser-Busch InBev (Ab InBev), the world s largest beer company, has offered to invest Rs 400 crore to expand its brewery operations in Karnataka, India. The company sees Karnataka as an ideal location for its operations and already has a brewery in Mysuru and a capability center in Whitefield. India is now the fourth largest market for Budweiser brand globally by volume sales. Ab InBev has also been diversifying its portfolio with energy drinks, whiskey, rum, vodka, and gin.