At the Parliamentary Standing Committee's Aug 25 meeting, Biman officials said former managing director Kevin Steele had reopened the route after "adequate evaluation".
Then committee chief Khan, a former civil aviation minister himself, had described the Biman officials' response as "very sad".
"One official cannot be held responsible for one route. The organisation is involved here," he said.
On Sept 23, the committee recommended the flag carrier to stop operating on loss-making routes.
Biman's management decided to cancel eight routes on Sept 25, documents from the committee indicated.
It decided to increase flights on profitable routes and shut down the loss-making ones eventually.
Khan said Biman also decided to increase its weekly flights on the Dhaka-London route to four from Oct 31.
Feasibility study on operating two weekly flights to Japan was also under consideration, he said.
"Dhaka-Tokyo flight will be introduced from next year if it is found profitable. At the same time, flights on the Dhaka-Guanzhou route, too, will be introduced."
"We've recommended informing passengers via mobile messages if there's any delay in flight on both local and international routes from December," he said.