I'd have more reason to be happy to get ToT for local assembly. That way - proper maintenance would be automatically assured.
Eventually they will end up needing close to 400 coaches for Dhaka use, not to speak of needing some 200 for Chittagong too at some point.
We will definitely need maintenance depots which should have minimal assembly facilities with frame rotors and gantry cranes.
These are the first thoughts that should come to mind for these idiot ministers. They can even get more bribes for ordering assembly plants......