Mumbai, Aug. 18 -- Shirish Chandra Murmu, Deputy Governor of Reserve Bank of India (RBI) has stated that cash remains a significant mode of payment in the Indian economy, and preserving trust in it, through clean notes, secure logistics, and a currency ecosystem people can rely on, is central to preserving monetary sovereignty itself. He also highlighted the cash paradox. Currency in circulation continues to grow at double-digit rates even as cash's share of individual transactions declines, thanks to growing digital payment adoption. That combination makes future demand harder to predict, which complicates our planning for production and distribution capacity. If any of you have found a good way to model this tension, I would genuinely l...