Actress Ambika, who ruled the roost in the 1980s and 1990s in southern filmdom, says her son Ram Keshav is gearing up his acting debut."My son is getting ready. He could debut in Tamil or Malayalam. It's too early to divulge more information. I want to give him the best launch," Ambika told IANS.The 54-year-old started her career as a child artist.At the age of 16, she made her debut as a lead heroine in 1978 Malayalam film "Samayamaayilla Polum".She went on to star in over 200 films in Malayalam, Tamil, Telugu and Kannada.