New Delhi, Aug 6: With the sudden demonetisation decision exposing its chinks, the country’s currency printing system is undergoing a complete overhaul, officials say. The system’s capabilities were put to the severest test during last year’s demonetisation, with millions of people standing in queues for long to get their quota of currency because the supply of new notes was slow in coming. The government is now focussing on the expansion, indigenisation and upgradation of currency presses and paper mills, a top official told IANS. Burdened by the outdated technology of the printing presses and limited paper mill capabilities, the currency note printing system lagged way behind the demand long after the demonetisation process, announced last November, had concluded. As a spillover, the government is now working towards strengthening the country’s currency printing system, the official, who did not want to be identified, said. While new note printing lines will be added at the shik and Dewas printing presses by 2018-end, the paper mills will also get two additiol lines to help India head towards self-sufficiency and indigenisation.