The Band of Brigade of Gurkhas could make a rare visit to Lincolnshire as part of a fundraising event planned by St John Ambulance.
The charity hopes to attract the musicians to the county to help raise money for an ambulance to serve remote villages in Nepal.
Permission for the Gurkhas to attend would have to be granted by the Queen.
St John Ambulance in Lincolnshire has already provided one vehicle to the Butwal region of Nepal.
Deepak Prasad, from the charity, said he had seen first hand how the vehicle has benefited the community.
He said with no hospitals in rural areas, it had already helped "save many lives".
Chief Executive of St John Ambulance in Lincolnshire, Jim Buckland, said it would be "very rare" to see the Ghurkas in the county.
The fundraising event will be held in August at Grimsthorpe Castle, near Bourne, and is due to be attended by the Nepalese ambassador.