service tax on expenses reimbursement

Dear Sir,

If a Property Valuer goes from Delhi to Mumbai for the purpose of property situated at mumbai.  He spends 10000/- as a travelling & lodging expenses.  If his fees is 15000/- for property valuation.

Will  he charged service tax on both the amounts or can give separate bills for Expenses reimbursement without charging Service Tax and His Bill charging his service tax.

Devender