With restrictions, a black market and illegal storage networks, India's vulnerability has been exposed by the conflict affecting the Strait of Hormuz, through which 90% of its liquefied petroleum gas transits.

Reports from across India point to rising sales of biomass fuels like firewood and cow dung cakes.

With restrictions, a black market and illegal storage networks, India's vulnerability has been exposed by the conflict affecting the Strait of Hormuz, through which 90% of its…