Power to alter, amend or vary the terms of the permit or Certificate of Registration.

At any time after a permit or Certificate of Registration, as the case may be, is granted, the prescribed authority may, for technical reasons, alter, amend or vary the terms of the permit or Certificate of Registration, as the case may be : Provided the user of ground water shall be given an opportunity of being heard before issuance of any such order : Provided further that before taking such action, the prescribed authority shall ensure that the standing crops are not damaged.