Renu Kulkarni, a 33-year-old homemaker from Mumbai, has managed to save Rs. 30,000 in the last two years. Setting aside small amounts from her husband's monthly earnings, her hidden purse has helped the family tide over tough times in the recent past. But now, she is in a fix. The 30,000 rupees that she had saved are all in denominations of 500 and 1000 which have now been discontinued.