mumbai, May 2 -- Fast-moving consumer goods makers are leaning on a mix of price increases, smaller pack sizes and tighter cost controls to navigate raw-material volatility triggered by the ongoing US-Iran war, while still reporting robust volume growth for the March quarter. The ongoing war blew up end February this year, disrupting global supply chains. Executives said calibrated pricing and 'shrinkflation' are helping them protect margins. The trend shows staples demand have held up, but also points to a gradual pass-through of higher input and packaging cost as geopolitical disruptions spike input prices. At Hindustan Unilever Ltd, the strategy is already in motion. The firm has implemented calibrated price hikes and adjusted grammage a...