Ace kollywood director Gautham Menon has roped in ace director Bharathiraja for the promotion of his flick, Nadunisi Naigal . Speaking to the media on friday, the actor said that Bharathiraja's hits like Sigappu Rojakkal etc is still popular. At a promotional event shoot yesterday Gautham interviewed the stalwart director Bharathiraja who gave the first Tamil modern psychological thriller in 1979.