In Kolkata, busting a major insurance racket, the CBI today carried out searches at 37 places which mainly included premises of officials of New India Assurance Company Limited for allegedly passing fraudulent insurance claims. <br/><br/>After registering seven cases, the CBI sleuths swooped down on the premises of the insurance officials as well as some companies who were allegedly involved in causing a loss of Rs 3 crore, to the company, officials said. Besides the insurance officials, premises of surveyors and cold storage owners in West Bengal were searched by the CBI. <br/><br/>The CBI alleged that the insurance officials, surveyors and company owners entered into a criminal conspiracy and made fraudulent insurance claims from the company's Behrampore branch.