Tata Technologies is the latest company that will move its headquarters from the suburbs to Detroit. The Novi-based division of Tata Group is leasing the 20,000-square-foot top floor of the Albert Kahn-designed building at 6001 Cass Ave. at York Street from Detroit-based The Platform LLC and will bring its more than 150 employees there by the early part of next year, the two companies announced Friday afternoon.