there is a lease deed which s to be enforced at a certain date and all the related registrations has been done, but the lessee shifts into that premise before date like say 10-15 days earlier as he was afraid that the lessor might give away the property to someone else. so the part which he has done is it legall or not..? like does he have the right to do so..? any legal provision which prohibits him to do so..?