Sensex & Nifty tank: Most of India's major equity indices, including the Nifty 50, Nifty midcap 150, and Nifty small cap 250, are currently providing returns that are greater than historical averages. This is true for practically all time scales ranging from seven days to five years. Because markets frequently mean revert, i.e., present returns come back to prior averages, the description above appears to imply that the Indian equities markets are likely to be in a corrective mode in the near future. In such a case, the...