Harsh Goenka's tweet that Harshad Mehta and Ketan Parekh-era scams have started again and can cause huge losses to retail investors drew strong criticism among the stock broker community. In conversation with Zee Business managing editor Anil Singhvi, ANMI president Vinod Goyal hit back at Goenka, saying Sebi has a strong surveillance system and the businessman should have come up with evidence before making such a strong statement.