The Excise SIT officials will interrogate Tollywood actor Tarun on Saturday. He is the fourth film personality to be grilled by SIT after Puri Jagannadh, Shyam K Naidu and Subbaraju. Tarun made an entry into films as a child artist. He gave several hit movies. According to sources, Tarun got addicted to drugs when he was riding high with hit movies and also opened a pub in the posh locality. The SIT officials prepared a list of questions to be asked to Tarun. He will be facing questions.