NEW DELHI : Liquor major Diageo on Monday pledged ₹45 crore to help nodal government hospitals in 21 districts in India to set up oxygen plants based on pressure swing adsorption (PSA) technology, besides providing state governments with mini hospital units in another 15 critical districts.The move will help the maker of Johnnie Walker, Black Dog, Black & White, and McDowell’s No 1 to augment India’s health infrastructure as the country battles a severe wave of covid-19 infections.With this pledge, Diageo has so far contributed ₹130 crore towards India’s covid relief efforts.“Diageo will help nodal government hospitals in 21 districts to set up PSA oxygen plants to create long-term oxygen capacity.