Former staff of Tata firm Tata Consulting Engineers and India's largest container port Jawaharlal Nehru Port undertook an ₹800-crore scam. The officials chose deeper 15-metre vessel draft instead of 14-metre, causing ₹1,163-crore loss, and opted single rate for dredging of different rock types, causing ₹557-crore loss. The contractors undertook dredging for excess width, causing ₹964-crore loss.