Corporate Office Gateway, The Institute of Travel Tourism & Hotel Management, Kathmandu, Nepal. P.O.Box: 20692 Contact Phone Numbers Corporate office - 00977-01-4266606                           00977-01-4215450 Fax - 00977-1-4215450 General Questions E-mail : inquirygateway@gmail.com General questions or comments. If your question requires personal attention a representative will contact you shortly.