CENVAT credit can be claimed for the traveling expenses, provided if it can be proved that such input services are having nexus with the manufacturing activity and falls under sales promotion/business promotion activity. However, as the hotel bills does not show any such details such as purpose and reason for stay, hence Excise Audit may disallow such credit.
If any business seminar or any exhibition is attended and same can be proved from other relevant documents such date and city of such seminar/exhibition as well as invitation letter for attending business tours etc.; then credit may be availed, after due guidance from your consultant.