New Delhi, Feb. 14 :    New Delhi, Feb. 14:  Income tax sleuths today swooped down on offices and other premises owned by the Vinay Rai family controlled Usha group. Tax department sources said the raids were conducted in nearly 50 places in Delhi, Haryana, Himachal Pradesh, Rajasthan and Uttar Pradesh. 'Power connection had been cut off in Usha Bhawan, their south Delhi-based headquarters. So, initially, we were unable to access their computerised records,' official sources said. Among other places, the residence of Vinay Rai, the group chairman, was also raided. The Usha group's managing director, M C Gupta, however, claimed 'The group has nothing to hide and is giving full co-operation to the officers of the Income Tax team.' He said, he supported the finance ministry's effort to investigate business groups. The department, sometimes, have 'no option but to conduct such searches,' he added. The IT department is also carrying out surveys on the premises of the group's offices in Mumbai and Calcutta. The Usha group's line of business involve telecom, hotels, infotech and manufacturing of engineering goods, iron and steel.