BENGALURU: One of the main objectives of the government's decision to demonetise the old Rs 500 and Rs 1,000 notes was to root out fake notes, which are used for terror funding among other crimes.However, according to documents available with TOI, only 1.39 lakh (3.4% of all notes returned) fake notes with a face value of Rs 9.63 crore had been returned to the banking system by November 27, nearly 20 days after the demonetisation decision kicked in.This forms an extremely small share of the estimated face value of fake Rs 500 and Rs 1,000 notes in circulation.In the first half of 2016, the Indian Statistical Institute (ISI) had pegged the face value of fake notes in circulation at Rs 400 crore -Rs 1,000 notes accounted for 50% of the sum, while the old Rs 500 accounted for at least 25%.According to the ISI 's estimates, together, the fake notes of the Rs 500 and Rs 1,000 denominations had a face value of Rs 300 crore.This means that the fake notes deposited in the wake of the demonetisation announcement account for just 3.2% of the face value of the counterfeit bills estimated to be in circulation. Experts say this is an indication that the majority of the fake notes are either with terror groups or black money hoarders, who cannot return these notes.There is a chance more of these will be returned by the December 30 deadline.A senior IPS officer who has dealt with terror modules said: “If we are to say that terror groups had most of this money , then it would have made its way to the market, because stocking money isn't of use to them. They are pumped with fake currency with a dual agenda: One, to fund themselves. And two, to destabilise our economy by infiltrating our system with such notes.“