Currently, priority sector lending (PSL), which comes at a cheaper rate, is limited to agriculture and other segments like MSMEs. RBI mandates domestic banks to set aside as much as 42 per cent of their total loan book towards PSL. The rupee had been one of the worst-hit currencies amongst emerging markets and lost over 20 per cent against the dollar since the beginning of the fiscal. Late last month, it plunged to a life-time low of 68.85 to the greenback. The rupee's trouble began after the US Federal Reserve hinted in late May that it may stop its USD 85 billion bond buyback programme sooner than expected, which led to a flight of capital back to the American shores from emerging markets, including India. However, within the first fortnight of the new RBI governor Raghuram Rajan taking charge, the domestic unit regained more than 10 per cent of its lost value, only to lose a part of it, following the 0.25 per cent hike in repo rate on September 20.