Look up per diem reimbursement rates and mileage deductions for business travel worldwide.

Complete

Ireland → Tamil Nadu, India

Item Name	Destination	Amount	Conditions
Meal & Lodging	Chennai, India	20457.5 INR per night	Overnight rate covering accommodation and three meals for a 24-hour absence abroad on official business.
Vouched Accommodation (VA) Rate	Chennai, India	10228.75 INR per night	Vouched Accommodation (VA) rate: paid in addition to the vouched cost of accommodation. Per Note 2 of Circular 07/2017 the VA rate should not be routinely used except for travel to Brussels, where the vouched cost of room plus the VA rate applies to all officers on overnight visits.
Daily allowance	Chennai, India	6819.17 INR per day	Ten-hour rate: applies to an absence abroad of ten hours or more without an overnight stay.
Daily allowance	Chennai, India	3409.58 INR per day	Five-hour rate: applies to an absence abroad of between five and ten hours.