Though the momentum effect is widely known in developed markets like the US, it's still relatively unknown in India. Over the past few years, there's been growing interest in the momentum style of investing. UTI Mutual Fund recently launched India's first momentum index fund which tracks the Nifty 200 Momentum 30 Index. But investors often extrapolate the past returns of momentum as a style and tend to think that momentum will always deliver superlative returns. So we caught up with Aman Singhania, the Vice President & Head of Index Development & Research at NSE India.