Sensex heads for second straight fall; Lupin drags

(Reuters) - Indian shares fell on Wednesday and were headed for their second straight session of declines, as drug maker Lupin Ltd dropped on concerns about its earnings outlook and as investors weighed whether the recent rally in equities may have been overdone. The falls came even as Asian stocks rose after Wall Street closed near record highs on Tuesday on hopes the Federal Reserve may hold rates after weak U.S. productivity data. Back home, a rally since late June has left the broader NSE in