 Landlocked Bhutan is keen to use Bangladeshi seaports in Chittagong, Mongla and Paira, as well as the Saidpur Airport, for the transshipment of cargo.A sub-regional transit network between Bangladesh, India, Nepal and Bhutan is under active consideration by SAARC and is being supported by the Asian Development Bank.To this effect the four countries have signed an agreement for the easy movement of Cargo, Passenger and personal vehicle movement between them.