( 1 ) SMT Bhagwanti Malhotra was tried in the court of Shri G. S. Mann, Judicial Magistrate, Delhi, on a charge under section 29 (2) of the Delhi Development Act. The Magistrate found the accused guilty of the offence charged with and sentenced her to a fine of Rs. 500. 00 and in default of payment of fine to undergo simple imprisonment for three months. Again the order of the Magistrate, the accused want in revision to the Sessions Judge. The revision was heard by Sh. K. S. Sidhu, Additional Sessions Judge, who dismissed the revision petition. The facts that gave rise to the prosecution and conviction of the petitioner are few and are not disputed. Bhagwanti Malhotra is the owner of residential building described as No. D/7 New Delhi South Extension, Part II. The petitioner let out the building to the Indian Oil Corporation (Aviation Deptt ). The Indian Oil Corporation was using the ground floor of the house as its office and the first floor for the residence of its officers. The Secretary, Delhi Development Authority (hereinafter called the authority ) filed complaint under section 29 (2) of the Delhi Developmentt Act alleging that the petitioner was using the buil