Any gst reverse charge (rcm) liability on foreign business trip cash expenses

Dear Experts,

Our office staff or senior persons make overseas business trips. They make following expenses in cash (in foreign currency) during their stay.

1. Hotel accommodation

2. Local commuting via. Taxi, Bus, Train and

3. Food at restaurants.

NOTE: All expenses are paid in cash by the traveller nothing is paid from here.

When reimbursing these expenses, do we need to pay GST under reverse charge on any of these expenses?

Will appreciate if you can point out to relevant sections under GST law  in support to your response.

Thanks,

Narendra