Period within which the Zonal Commissioner is to grant or refuse to grant permission to execute work

(1) Within thirty days after the receipt of any application made under section 242 for permission to execute any work or of any information or of documents or further information or documents required under rules or bye-laws the Zonal Commissioner shall, by written order, either grant such permission or refuse on one or more of the grounds mentioned in section 244 or section 245, to grant it. (2) If the Zonal Commissioner has not within the said period of thirty days passed any order, the applicant may address a letter to the Chief Commissioner by name, requesting him to pass necessary orders on his application, and the Chief Commissioner shall, within a further period of thirty days from the date of receipt of such letter, by written order, either grant such permission or refuse, on one or more of the grounds mentioned in section 244 or section 245, to grant it.