Mumbai, Nov. 25 -- The Indian rupee (INR) depreciated slightly against the US dollar in October, reflecting the impact of a stronger US dollar following the US Fed's policy announcement around the end of the month, RBI noted in its November bulletin. In mid-October, however, the INR registered a brief but sharp appreciation, supported by optimism over India-US trade talks and renewed net FPI inflows. Consequently, rupee volatility increased marginally during the month, although it remained relatively contained compared with most major currencies. In November so far (up to 21st), the INR appreciated slightly by 0.1 per cent over its end-October level. In real effective terms, the Indian rupee appreciated marginally in October mainly driven...