It is known that SIT issued notices to 12 Tollywood celebrities with the information got from drug mafia king Kelvin. SIT interrogation schedule of Tollywood celebrities has been released as per which the interrogation process will begin with director Puri Jagannadh tomorrow and will continue upto 10th. Sources say that some expressed difficulty to attend but SIT didn't accept. Ravi Teja mother responded yesterday and condemned the allegations and like wise Poori's daughter Pavitra also said some people are unpopularising her father. SIT has already prepared the questionnaire, say the sources. Puri Jagannadh was in Paisa Wasool movie shooting and Mumait Khan is also engaged in Bigg Boss show. But SIT officials say strictly that they must attend the interrogation in any circumstances.