Abdul Mannan Bhuiyan, who played an important role in the Khaleda Zia regime, died past midnight on Wednesay after fighting lung cancer.
Bhuiyan was 67, the Daily Star reported.
A long-time minister and secretary general of the Bangladesh Nationalist Party (BNP) for 11 years,
Bhuiyan was removed by Zia in 2007 amid media reports that he was floating his own faction of the party.