Bengaluru, May 1 -- The Assam government told the Supreme Court on Thursday that Congress leader Pawan Khera had allegedly used forged documents to claim that chief minister Himanta Biswa Sarma's wife possessed multiple passports and undisclosed properties abroad. Even as the court reserved its order on Khera's anticipatory bail plea, the state demanded that Khera must face custodial interrogation to explain whether he forged the documents himself or received them from others, and whether any "foreign hand" was involved in an attempt to disrupt the Assam assembly polls. Solicitor General Tushar Mehta, appearing for the state, told a bench of justices J K Maheshwari and Atul Chandurkar that Khera, at a press conference on April 5, had showed copies of passports of the CM's wife, Riniki Bhuyan Sharma. The investigation so far, Mehta said, showed those images were forged. He added that Khera had also shown fake documents relating to a company registered in the United States. Mehta said that the state police needed custodial interrogation to trace the source of the documents and to determine who created the forgeries, how the photographs, names, and QR codes were altered, and whether any actors outside India played a role. "This is not a mere case of defamation but it involves a 'most serious offence' with wider national implications. He (Khera) will have to explain who forged the documents for him and if a foreign hand was involved to disturb our local elections," Mehta told the court. Mehta made his submissions while opposing Khera's petition challenging an April 24 order of the Gauhati High Court order that denied him anticipatory bail in an FIR registered on a complaint by Sarma's wife. Mehta also said Khera had evaded the investigation since the FIR. He said Khera has been absconding and releasing videos and all the allegations about the chief minister's wife holding multiple citizenships are false. Senior advocate Abhishek Manu Singhvi, who appeared for Khera, argued that the allegations against him are a matter of trial and it was not necessary to humiliate him by arrest....