<div>The Reserve Bank of India (RBI) has asked the public not to write on the watermark window of banknotes as it bears an important security feature which differentiates it from a fake note.</div><div> </div><div>RBI said it was brought to its notice that members of public and institutions write number, name or messages on the watermark window of banknotes and thus deface the currency.</div><div> </div><div>"The watermark window has an important security feature which distinguishes it from a counterfeit note. Any defacement on the window will not allow the common man to identify one of the features of a genuine note," RBI said in a notification.</div><div> </div><div>"The public is, therefore, requested to refrain from doing anything that leads to defacement," it added.</div><div> </div><div>(PTI)</div>