The income tax (I-T) investigation wing on Thursday carried out searches at the office premises of a company owned by Parth Pawar, son of deputy chief minister Ajit Pawar, at Nariman Point in South Mumbai. I-T also searched premises connected to three of Ajit Pawar’s sisters in Satara, Kolhapur and Pune and offices of three construction firms in Mumbai. The searches will continue for a few days.