CBI called former CMDs T V S Shastry and V R S Natrajan and questioned them over the deal besides summoning four Directors who were on the board when this deal was struck, agency sources said.
CBI had registered a case against Vectra Chief Ravi Rishi and unnamed officials of the Defence Ministry, Army and BEML on March 30 for alleged criminal conspiracy, cheating and also under relevant sections of the Prevention of Corruption Act.
CBI is probing alleged irregularities in assigning of supply from Czechoslovakia-based Tatra, with which the agreement was signed in 1986, to the Tatra-Sipox UK owned by Rishi in 1997 showing it as an original equipment manufacturer and the fully-owned subsidiary of Czech company, which was against the provisions of Defence Procurement Procedure.