Dhaka, March 25 -- Global brewers operating in India are warning of price increases and supply disruptions as a shortage of gas due to the Iran war drives up the cost of glass bottles and shipping delays hit imports of aluminium needed by can makers.

India is especially vulnerable to fuel availability as the world's fourth-largest importer of natural gas, relying heavily on the Middle East for shipments, sourcing about 40% of its supply from Qatar.

Iranian attacks have partially disrupted Qatar's export capacity, tightening gas availability for Indian manufacturers.

The Brewers Association of India, representing global brewers Heineken, Anheuser-Busch InBev and Carlsberg told Reuters that glass bottle prices have surged around 20%, pap...