MUMBAI, Feb 5 (Reuters) - The Indian rupee fell on Friday as weaker share prices and a strong dollar overseas weighed on sentiment. * At 3:30 p.m. (1000 GMT), the partially convertible rupee INR=IN was at 46.63/64 per dollar, weaker than Thursday's close of 46.24/26. * The benchmark BSE index .BSESN ended 2.8 percent lower. [.BO]. The subdued response to a $1.8 billion share sale by state-run NTPC (NTPC.BO: Quote, Profile, Research), the country's top power producer, added to the rupee's weakness. * The dollar hit a seven-month high against a currency basket on Friday as a widening in euro zone government bond spreads highlighted fears over the indebtedness of the region's weaker economies, spurring risk aversion. [USD/] * The dollar index .DXY, a measure of its performance against six major currencies, was up about 0.5 percent. * One-month offshore non-deliverable forward contracts INR1MNDFOR= were quoted at 46.71/75, weaker than the onshore spot rate. * In the currency futures market INRFUTURES, the most traded near-month dollar-rupee contracts on the National Stock Exchange and MCX-SX ended at 46.7075 and 46.71 respectively. (Reporting by Anurag Joshi; Editing by Sunil Nair)

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