I have a collection of historic “Bombay Presidency” cadastral tippans that include their original base-line measurements and a series of handwritten offsets. I want to transfer these sheets into a clean, georeferenced layer inside QGIS through a custom plugin rather than drawing every feature by hand. What the tool must do • Offer fully customizable digitization tools: while tracing a baseline, the plugin should let me enter each offset (distance and side) and automatically draw the resulting parcel edges. • Work in a single, fixed coordinate system that I will supply at the start of the project—no need for on-the-fly reprojection. • Export the finished geometry to a Shapefile with all entered attributes preserved. Deliverables • Compiled QGIS plugin (compatible with QGIS LTR 3.x) • Source code (Python / PyQGIS) with clear inline comments • Short PDF or markdown user guide showing installation, the digitizing workflow, and the Shapefile export step I will provide sample scanned tippans, the coordinate reference to use, and a small set of test measurements so the workflow can be validated. The job is complete once the plugin recreates those test plots accurately and the Shapefile loads in QGIS without errors.