بسم الله الرحمن الرحيم
He may do the business of Hajj and Umrah tour. Thus you should bear in mind not to tell a lie to the Hajis nor deceive them nor create any problem for them in their accommodation and food etc. If you deceive Hajis and trouble them in accommodation then your income shall be unlawful or doubtful.
Allah knows Best!
Darul Uloom Deoband
This answer was collected from the official ifta website of Darul Uloom Deoband in India.