New Delhi, June 21 -- The CBI has registered a case against former officials of Jawaharlal Nehru Port Trust (JNPT) and Tata Consulting Engineers (TCE), as well as as two dredging companies, alleging irregularities worth more than Rs.800 crore.

As per officials, the alleged irregularities are linked to the Capital Dredging Project to deepen ship navigational channels near Mumbai.

The federal investigative agency's action comes after three years of a preliminary inquiry that took a look into accusations of inflated estimates, halting of competition to benefit international bidders, extending undue favours to contactors, and suppression of reports of independent expert organisations.

The CBI in its FIR has booked named then chief engineer...