The Deposit Insurance and Credit Guarantee Corp (DICGC) is suspected to have made substantial purchases at a primary debt auction on Friday, say participants in the Indian government bond market. While the national reserve bank sold 140 billion rupees of the 7.26% 2033 bond and 80 billion rupees of the 7.06% 2028 bonds, some participants suspect DICGC may have bought bonds worth between 30 billion and 50 billion rupees. A senior treasury official at a state-run bank said DICGC typically invests its May funds into the government securities market in June.