Demonetisation Ordinance, 2016 has wide implications as to the incidence of tax on the demonetised currency, which is deposited or encashed. The Government has come out with instructions and Clarifications besides a limited amnety, Pradhan antri Garib Kalyan Yojana, 2016. The Book deals with undisclosed income under the existing law means to be adopted for conversion of demonetised currency and the manner in which the concessions given under the various schemes and instructions are availed by those, who have been hit by the demonetisation.