The Reserve Bank is also committed to a “clean note” policy. We exchange soiled notes for clean ones, and mutilated notes for new ones subject to certain conditions.
In pursuit of our clean note policy and to check counterfeiting, we also prescribed that, by March 31, 2011, all bank branches with cash receipts of over 50 lakhs per day be equipped with a note sorting machine so that every high denomination currency note is checked for fitness and genuineness before being put back in circulation.