In a latest development in the Surat rape case, a witness has revealed that Asaram Bapu's son Narayan Sai used drugs for sexual potency and had a fetish for group sex. The Surat Police is yet to testify the witness' statements.Sources say that the statement of the witness was recorded under Section 164.Narayan Sai, the son of controversial self-styled godman Asaram was declared a proclaimed absconder as he has been evading arrest for over a month now in connection with the sexual assault case lodged against him by one of the two sisters based in Surat.The police has, so far, not been able to trace him even 35 days after the alleged rape case was registered against him and his father Asaram by the sisters.Chief Judicial Magistrate A.S. Gadhvi had declared Sai a proclaimed absconder under section 82 of CrPC on an application filed by police after Sai failed to appear before the police despite summons being issued.The court has asked Sai to appear before the investigating officer or court within 30 days from the day of declaration of 'proclamation for person absconding'.In case of non-appearance within 30 days, the court said proceedings would be initiated against Sai under section 83 of CrPC, which entails seizure of personal property.After the case was filed against Sai on October 6, the Surat police on October 7 issued a lookout notice against Sai so that he cannot leave the country.Police had booked Asaram and Sai on charges of rape, sexual assault, illegal confinement and other offences on the complaint lodged by the two sisters.While the younger sister accused Sai of repeated raping her between 2002 and 2005 when she was leaving in Surat Ashram, the elder one accused Asaram of sexual assaults between 1997 and 2006 when she had been living in his ashram, located on the outskirts of Ahmedabad.Asaram (75) was arrested in August on charges of sexually assaulting a minor girl at his Jodhpur ashram in Rajasthan and was lodged in jail there.He was brought to city and interrogated in connection with the sexual assault complaint here before he was taken back to Jodhpur.The complaint against Narayan Sai was registered at Jehangirpura police station in Surat, while the one against Asaram was transferred to Ahmedabad as the alleged incident happened there.