New Delhi, Oct 30 (UNI) The Ministry of Finance has defended the valuation and bidding process for the strategic sale of IDBI Bank, stating that the procedure followed by the government helped enhance the transaction value by Rs 3,917 crore. The ministry said the Core Group of Secretaries on Disinvestment (CGD) was empowered to take decisions on the final round of bidding and resolve procedural matters to ensure a smooth disinvestment process.