Mamun is also a close friend of BNP’s acting chairman Tarique Rahman, who now lives in London
Rapid Action Battalion (RAB) has said online casino kingpin Salim Prodhan illegaly sent money to London several times.
He has also maintained a close relationship with Giasuddin Al Mamun, now in jail on charges of extortion, corruption, money laundering and tax evasion.
Mamun is also a close friend of BNP’s acting chairman Tarique Rahman, who now lives in London.
RAB 1 Commanding Officer Lt Col Sarwar Bin Kashem made the statement at a press briefing on Tuesday after arresting Salim and three of his associates on Monday.
He also said: "Based on intelligence, we planned the operation. Selim was arrested from a Bangkok-bound Thai Airways flight at Dhaka’s Hazrat Shahjalal International Airport Monday afternoon.