With the Reserve Bank of India announced to withdraw completely all series of currency notes of higher denominations of Rs 500 and Rs 1000 prior to 2005 before 31^st March 2014.  The Centre has made clear its motive: it wants to flush out black money, circulate more cash through banking system, bring more money in government treasury, and curb use of unaccounted money during elections. But a big question remains unanswered: what will happen to these notes after March 31?