The government has approved the Reserve Bank of India (RBI) to print polymer (plastic) banknotes in the Rs 10 and Rs 20 denominations, according to multiple reports. The approvals cover both field trials and regular issuance, with the RBI sourcing materials for the new notes. One outlet reports that the total number approved is up to about two billion polymer notes, while another specifies that the Finance Ministry clears a pilot involving one billion notes of Rs 10 and Rs 20 to test performance before any broader rollout. The reports also state that paper and polymer currency are planned to coexist in circulation, rather than replacing paper notes immediately. The initiative is described as part of efforts to improve the durability and lifespan of banknotes in day-to-day use. Additional coverage notes that RBI is assessing the broader implications of the change, including potential effects on digital payment systems, and that any wider rollout would depend on the outcomes of the trial phase. Overall, the sources describe a phased introduction beginning with testing, followed by continued issuance contingent on results.