13D. When the extent of erosion along the banks of any river has been determined by survey after issue of a proclamation under sub-section (1) of section 13B, the amin or other survey officer engaged for the purpose shall show the same by drawing diluvion lines on the latest survey maps of the mauzas concerned noting the year of diluvion at both ends of such diluvion lines and shall send to the Collector the mapsand all papers relating thereto after signing them legibly giving designation and date; and the amin or other survey officer engaged for the purpose of survey of accretions, reformations or new formations, as the case may be, shall show the periphery of the same on traverse sheets, and shall send to the Collector these traverse sheets, and all papers relating thereto after signing them legibly giving designation and date.