The police are questioning members of Sathya Sai Central Trust in Puttaparthi in relation to the Rs 35.5 lakh seized at Kodikonda checkpost at Hindupur on June 18. While the police have completed the questioning of Ratnakar, Sathya Sai Baba's nephew, the interrogation of Srinivasan, a high-profile member of the trust, is underway.