SEBI chief U K Sinha today said that various efforts are being made at the state, Centre and regulatory levels to clamp down on illegal money collecting activities or ponzi schemes.Mr Sinha exuded confidence that a multi-pronged approach would help control the menace of illegal money pooling schemes.The capital market watchdog now has powers to regulate illegal collective investment scheme where the amount involved is more than Rs 100 crore. Mr Sinha said effective implementation of deposit or protection law in the states, exchange of information at the state level and between various agencies, and SEBI 's powers would help in controlling the menace of these activities.In recent times, many instances of investors getting duped by dubious investment schemes have come to light.