Deutsche Bank Securities announced late yesterday that former Citigroup executive Dushyant Chadha will be joining its New York office as MD and head of equity derivatives, North America. Chadha will jointly report to Roger Naylor, Deutsche's MD and global head of equity derivatives, and Robert Karofsky, co-head of the bank's global markets equity business. Chadha is an addition to staff, not a replacement for a departing executive, a Deutsche spokesperson confirmed. He will be charged with gro