New Delhi, Oct. 6 -- A Rs.5 bottle of water. That's the strategic weapon Reliance Consumer Products Ltd, part of Mukesh Ambani's sprawling conglomerate, is deploying to ignite a new price war-not just in fizzy drinks, but across India's Rs.30,000-crore bottled water market.

The conglomerate has launched Campa Sure, its second packaged water brand, priced to undercut even the segment leader (Bisleri's 250ml retails around Rs.5.50). Alongside its staples brand Independence, this dual-brand approach marks Reliance's most direct challenge yet to rivals such as Bisleri, Coca-Cola (Kinley), and PepsiCo (Aquafina).

Mint explains how a seemingly small price difference could reshape the entire beverage battlefield.

Reliance's first packaged wat...