The cash seized is suspected to be misappropriated in respect of a scheme that is aimed at distribution of oil seeds under subsidy to farmers, the Directorate of Vigilance and Anti-Corruption said. Following a tip-off on allegations of irregularities by Assistant Director of Agriculture of a specific block in Tiruvarur district with the connivance of 4 others of the department, a 'surprise check' was held in the office of that official on December 10. The inspection led to seizure of Rs 23,14,650 unaccounted cash, the state anti-graft agency said adding a probe was on.