Rate of tds in case of payments to non residents

Hi Friends I have a doubt regarding with rate of holding of tax in a transaction with foreign company which is a resident of Dubai. 1) Indian Entity a Pvt Ltd Co has procured technical services from the Dubai vendor and Vendor has provided NO PE Declaration, however he is denying to provide the TRC.   2) There is no provision provided with respect to Technical Services in DTAA between India and Dubai.  (a) What is the rate of holding of tax in this transaction?