Indian benchmark indices, Sensex and Nifty, extended their decline for a second day, heavily influenced by HDFC Bank's underwhelming quarterly earnings and heightened geopolitical tensions in West Asia, reinforcing a cautious market sentiment.Photograph: Arko Datta/ReutersKey PointsIndian benchmark indices, Sensex and Nifty, recorded a second consecutive day of losses.HDFC Bank's disappointing quarterly earnings, particularly on the margin front, was a significant factor in the market decline.Escalating US- ...