Shares of troubled fintech One 97 Communications or Paytm fell another 10% on Monday to its lower circuit limit at Rs 438.35 on BSE as the regulatory crisis deepened with fresh allegations of money laundering and investigation by the Directorate of Enforcement (ED) coming to the fore. In the last 3 trading sessions, including today, the stock has lost 42.4% of its value or Rs 20,500 crore in market capitalisation.