hi @Shubhangi Shubha in general per diem covers all expenses incurred during travel apart from accommodation and food if food is included in the accommodation package. Mostly breakfast is included in. can include lunch and dinner, travel (cab, bus, metro) business expenses etc. in the allowance. you will also have to take into account how many days of travel and what will be the per day cost the individual will incur and derive at the Per Diem 150 USD to 300 USD for a 3 day visit should be good, it would also increase if the person is a sales guy and if the individual is a senior member in the company