After conducting reconnaissance in disguise for several days, Income Tax officials seized Rs 1.5 crore of unaccounted cash and 8 kg of gold worth Rs 2.63 crore from hawala operators here in West Bengal, an official said on Thursday."Based on credible inputs regarding suspicious activities of unaccounted cash and gold trading activities being carried out at Burra Bazar area and nearby places, our officials seized more than Rs 1.5 crore in cash and 8 kg of gold biscuits worth Rs 2.63 crore in two days from hawala operators and unaccounted gold traders," an IT official told IANS.During the search and seizure operation, several incriminating physical and electronic evidences were seized, the official said. IT officials have so far seized over Rs 28.77 crore of unaccounted cash, jewellery and bullion from West Bengal after the announcement of the Lok Sabha elections, the official said.