Section 5(2) in The Railways (Opening for Public Carriage of Passengers) Rules, 2000
(2)Index Plan and Section sheet shall be prepared as laid down in paragraphs 443 to 451 of the Indian Railways Code for the Engineering Department as reproduced in Schedule.(a)Completion drawings of bridges, with drawings showing each type of girders used and giving the loading standard for which each is designed, and (if called for by the Commissioner), details of the calculations of their strength;(b)Completion drawings of tunnels, if any;(c)Diagrammatic plans of station yards showing the gradients, the layout of tracks and particulars of turn out, block working and of any signals and interlocking installed;(d)Implantation of diagrams of Over Head Equipment masts, if applicable.
