The market regulator Securities and Exchange Board of India (Sebi) has begun a preliminary investigation into the crash in share prices of small- and mid-cap companies in recent months.
Sources say the regulator is probing the abrupt price movement in close to 70 stocks, following red flags raised by its surveillance system. Shares of several companies dropped over 40 per cent in the past three months, which has raised suspicions over unfair trade practices.
Sebi, in consultation with stock exchanges, has sought details of a host of investors who made bulk purchases or sales in these stocks between May and

)