tax credit under DTAA

dear all,

my company has deducted TDS u/s 195 of a Japan TECHNICIAN WHO CAME TO INDIA FOR INSTALLATION OF PLANT.

now how can he get the benefit of tds deduction in his country. i mean to say what is the procedure for him to claim the TDS set off with our form 16 a

is it sufficient for us to give him 16 A and he can claim in his country .

FYI japan and india are having DTAA

pls advice