Is it permissible to remove the bones of the deceased from the grave in order to bury someone else in it?

No File Exists
Check below answers in case you are looking for other related questions:
Funeral prayer in absentia, offering food to mourners and reading Qur’aan for the deceased
Does mentioning the deceased and grieving over him harm him in his grave?

No File Exists
Related Answers:
Ruling on reciting al-Faatihah for the deceased
Wearing black at times of calamity… a wrong custom with no basis
Offering condolences to Christians
Funeral prayer in absentia, offering food to mourners and reading Qur’aan for the deceased
Does mentioning the deceased and grieving over him harm him in his grave?

Recommended answers for you:
Using the birth control pill and the coil
Ruling on women visiting graves
Reciting Surahs and Aayahs in a different order
Sleep invalidates wudoo’ if it is deep
Rulings on miscarried foetus