We can keep the picture of Bhadrinath Perumal in our sanctum. If there are other devatas, they exist there as devotees. Since it is our custom to go there and worship, we can keep the pictures. For instance, Lord Brahma is present at Nachiyar Kovil; we do worship there. Similarly, when we go to Badrinath to worship, Kubera is present there, and we worship Badrinath. Therefore, there is no dosha in keeping that picture.