Biplab Sen (name changed on request), an Odisha-based investor, is one of those who has lost money due to F6 Finserve, a Gurgaon-based stockbroker, defaulting on payouts to clients. Sen had the first inkling of trouble when his trading terminal stopped working early in February. When he called up the broker, he was told that there were technical problems which would be resolved soon. Despite a long wait and repeated phone calls, the terminal did not resume functioning, and later the broker too stopped responding. Subsequently, the Bombay Stock Exchange declared F6 Finserve a defaulter. The 90 clients of this