law: 153. New premises not to be occupied without arrangement for water supply.
  It shall not be lawful for the owner of any premises which may be newly constructed or reconstructed within any portion of New Delhi to occupy it or cause or permit it to be occupied until he has obtained a certificate from the Chairperson that there is provided within, or within a reasonable distance of, the premises such supply of wholesome water as appears to the Chairperson to be adequate for the persons who may occupy, or be employed in, such premises for their domestic purposes.