Last time when sizes of currency-notes were reduced in the year 1967, complete series in all denominations were issued simultaneously. With issue of new denomination of Rs 200 already announced, RBI should issue new smaller-sized notes of Rs 200, 100, 20 and 10 simultaneously at the earliest to reduce cost of printing-printing and induce newness in the system. Since Rs 10 coins are still unpopular, plastic notes of rupees ten in smaller sized should be issued on experimental-basis as repeatedly announced by RBI and Government of India.