Das was arrested by police on Tuesday (January 11) and detained under custody.
The Commissioner of Transport will inquire into the matter and submit a report within 15 days.
Besides, Pranab Mahanta, Peon, Office of the District Transport Office, Nagaon, has also been arrested on corruption charges and thereby suspended.
It may be mentioned Smti. Balwant Kaur, who is an outsider, and not a government employee, has also been arrested by police.