New Delhi: Taking an immediate action on the Army Chief’s claim of being offered Rs 14 crore bribe for procurement of sub-standard equipment, the Central Bureau of Investigation (CBI) on Friday summoned NRI businessman Ravi Rishi, owner of UK-based Vectra Group and also a major shareholder in Tatra trucks.

The Army Chief in his claim had questioned the price and services of the Tatra trucks.

READ MORE: CBI registers case in Tatra truck deal

The CBI called Ravi Rishi for questioning in connection with the supply of all-terrain Tatra trucks through state-owned BEML to the Army.

The CBI has also launched search operations at four places in Delhi and Bangalore in connection the alleged irregularities in Tatra trucks deal.

According to sources, Ravi Rishi has assured that he would fully cooperate with the investigating agency.

Earlier, Rishi had said that he never met VK Singh and wants a clean chit to go on with this business.

Army Chief in an interview on Monday had alleged that a recently-retired officer offered him a bribe of Rs 14 crore to clear the purchase of substandard trucks and that the government didn't act on his complaint on the issue.

The 150-year-old corporation has the oldest truck factories in the Czech Republic.

Vectra group has a chartered aircraft business in London and owns the largest chopper firm in India. It is also the biggest shareholder in Noida-based India Exposition Mart.