Capital markets regulator Sebi on Tuesday barred 21 entities, including Axis Mutual Fund's former fund manager Viresh Joshi, from the securities market in connection with the front-running case at the fund house. In addition, the regulator has ordered impounding wrongful gains worth Rs 30.56 crore earned by them through "prima facie" front running activities, according to an interim order. Front-running refers to an illegal practice in the stock market where an entity trades on the basis of advance information from a broker or analyst before the information has been made available to their clients.