Indian Encasements Act, 1882
61. Revocation express or implied
The revocation of a License may be express or implied.
(a) A, the owner of a field, grants a license to B, to use a path across it. A with intent to revoke the license, locks a gate across the path. The license is revoked.
(b) A, the owner of a field, grants a license to B to stack hay on the field. A lets or sells the field to C. The license is revoked.