Hasan Ali Khan, the Pune stud farm owner facing charges of huge money laundering and tax evasion, was taken into custody by the Enforcement Directorate after a day-long search of his premises by its officials on Monday.About a dozen ED officials from Mumbai came down to Pune to search Khan premises in posh Koregaon Park area, a little distance away from the landmark German Bakery. Khan was picked up in the afternoon and driven away, presumably to Mumbai, for interrogation. There was no official word from the ED and media persons waiting outside Khan's residence were not briefed about the operations. Clad in white kurta and wearing sunglasses, Khan was seen inside a black Mercedes that left the Tulip bungalow located in Valentine Residential Society escorted by ED sleuths in two cars. Khan's detention came a day before the Supreme Court' March 8 deadline to the government to inform it how it proposed to tackle black money hoarders. Meanwhile, his lawyer R K Gaur said Khan has not been detained and that he was being taken to the ED's office as part of a routine investigation.