The yawning divide between the super-rich and middle-class in India's booming economy is set to persist, if the "underperformance" of consumer stocks in the raging stock market is anything to go by. Stock prices of consumer firms selling soap, hair oil and refrigerators are seeing double-digit gains but are still lagging benchmark Indian stock indexes as low income growth and volatile inflation hurt demand for everyday goods. Asia's third-largest economy is set for a 7.6% expansion in the financial year ending this month, but private consumption, which contributes 60% of ...