Mumbai - Prime minister Narendra Modi announced the demonetisation of Rs 500 and Rs 1000 currency notes on 8 November and the country has been witnessing a chaotic situation since then. Long queues can be seen at banks and ATMs to withdraw cash for day to day transactions, but the inconvenience is said to be a small price to pay to root out black money from the country. In a public meeting held in Goa, PM Modi made a statement suggesting further 'shocks' after 31 December this year. This statement has led to further speculation. Advertisements issued by the Reserve Bank of India (RBI) could provide some answers. The Mumbai Live team has been tracking the hints hidden in the RBI ads and if our findings come true, the country may witness a total change in the currency system. Watch the video for details.