HDW commissions scam was found in 1987 and in this scam, HDW submarine company had given Rs. 20 crores as commissions. So this company was blocked.
The case was registered by V P Singh government in March 1990.
Singh, who as defence minister in Rajiv Gandhi government ordered the investigation into the case after he received a telegraphic message from the then Indian ambassador in Germany about payment of seven per cent commission to some middlemen, had resigned from the government after sharp differences with Gandhi on the issue. The case was closed in 2005.