If it can be identified I guess it could stay, unless someone else has other opinions. These look like Indian built Enfields - probably from the 1950s but they may well be much later models. They have been building these 1950s style bikes since then and as far as I know they still are - with a few updates like electric starting and disc brakes.
The car is a 1939 Daimler DB18, the bikes indeed are Indian Enfield Bullets
