Tds on exhibition charges

Dear Sirs,

One of our client have received a debit note from their distributor for stall rent of  one exhibition held at outside India.

The Total Bill amount was Rs.400000  and  it is raised by an Indian Co addressing the distributor .The distributor issue Debit note for 50% to our client and the remaining bear by them.

Is our client liable to deduct TDS on this?if yes who will be the deductee? distributor or  the agency company?Pls advise

Thanks and Regards

Gayathri