"Ziaur Rahman made Ershad Deputy Chief of Staff of Army and the Army Chief," he said while speaking at a discussion at Institution of Engineers Bangladesh in the capital on Thursday.
Jatiyatabadi Swecchasebak Dal organised the discussion in observance of 'National Revolution and Solidarity Day.'
On Wednesday, Ershad said though Ziaur Rahman was a freedom-fighter, he destroyed the spirit of the War of Liberation after taking over power.
Mirza Fakhrul said Ershad's role was controversial in the death of Ziaur Rahman.
He said a new freedom-fighter has born in the country and he is Ershad. "I don't feel the necessity to talk about him. It seems the he will get undue importance if we talk about him."
Addressing Ershad, Mirza Fakhrul said, "Please! remain silent. Don't try to undermine yourself."