The Corporation shall, from time to time, determine and levy charges for the facilities provided and services rendered for any purpose to the Government, Local Authorities, Government agencies, associations, societies, organisations or any other users or consumers:
Provided that, the levy of such charges shall be such that the charges so recovered shall be sufficient at least to cover the interest charges of the loans raised by the Corporation from the open market.
20. Responsibility of the Corporation for payment of interest on borrowed money -The Corporation shall pay the interest on the borrowed money through the recovery of charges levied and collected under section 19 of this Act.
21. Prohibition of construction of any facility for extraction of surface water without approval of Corporation - No person shall construct, operate or maintain within the area of operation of any project or work or scheme vested in or entrusted to the Corporation any facility for the extraction of surface water, without the prior approval of the Corporation:
Provided that the Government or a Local Authority may, construct and operate such facility, or assign or hand over such facility to the Corporation.