TDS on Hotel Exp. made abroad

say a Indian Co. is going to held a conference in abroad say in Bangkok. About 25-30 participents are going there.

Co. is going to incurred

1. Travelling exp. like Air ticket exp.

2. Hotel room booking exp., Conference Hall booking , foodings & other relatred arrangement exp.

My question is that whether all these expenses are attract TDS to be deducted by us on the Foregin Co.

if yes then whether the TDS certi. are acceptable by them in general practice.