New Delhi, Oct. 30 -- Indian stocks are seeing their weakest market breadth in seven months, with more shares falling than rising as escalating tensions in West Asia, high oil prices and elevated global bond yields sap investor confidence.

The advance-to-decline ratio on the BSE, which shows how widely a rally or sell-off is spread, fell to 0.89 in October, close to levels last seen in March. A reading below 1 means more stocks are falling than rising, a sign of broad-based selling pressure.

The weakness comes amid a worsening global risk environment. The continuing war in West Asia has pushed up oil and commodity prices, stoking inflation concerns and weighing on risk appetite. The benchmark Nifty 50 index is up nearly 2% in October, e...