This presentation summarizes development work by Er. Pradyumna patidar from May 2011 to May 2014 for PEB Steel Lloyd (I) Ltd. It includes macros developed for Tekla for tasks like purlin clipping connections and reference line creation. It also includes Excel sheets developed like an eave height calculator and accessories calculator. Additionally, it outlines AutoCAD commands developed for tasks like building haunches, rafters, and intermediate columns as well as bolt scheduling and end plate fabrication drawings.