new delhi the income tax department carried out searches at 22 premises in coimbatore erode chennai and namakkal on wednesday on an educational group and unearthed unaccounted income of more than rs 150 crore rs 5 crore in cash was seized besides digital evidence during the searchesit was found that fees collected from students were not fully accounted for in the regular books of accounts according to the central board of direct taxes the apex cadrecontrolling body of itthe it searches which continued till thursday evening revealed the unaccounted receipts were siphoned off to the personal accounts of the trustees of the educational institutions the black money was then invested in real estate through a shell company