The registrar shall, on the requisition of the proprietor of any charge, or on due proof of the satisfaction (whole or partial) thereof, notify on the register in the prescribed manner, by cancelling or varying the original entry or otherwise, the cessation (whole or partial) of the charge, and thereupon the charge shall be deemed to have ceased (in whole or in part) accordingly.

On the notification on the register of the entire cessation of a registered charge, whether as to the whole or part only of the land affected thereby, the term or sub-term implied in or granted by the charge or by any deed of alteration, so far as it affects the land to which the discharge extends, shall merge and be extinguished in the registered estate in reversion without any surrender.