Zero Rupee Note

Zero rupee notes, which are made to resemble the regular 50 rupee banknote of India, are the creation of a non-governmental organization known as 5th Pillar which has, since their inception in 2007, distributed over 2.5 million notes as of August 2014. [5]

These zero rupee notes were designed for use by Indian citizens who have been requested to pay bribes in order to obtain services that are legally free or who are hit with illicit surcharges on such routine government transactions as obtaining a driver’s license. [8] Upon returning to India for a visit, Bhagat was frustrated by the petty extortion demands of government officials that were part of daily life and conceived of the idea of a zero rupee note as a polite way of declining participation.

Source: en.wikipedia.org