I was in for a surprise, when my neighbour Snehin, who is a 10th standard student, came for help regarding his IT examinations. He knew my job was something regarding maps and told me he had something about maps in his subject.
Going through the text book(pdf) was interesting. There is indeed a chapter on GIS..
I am in the process of creating a topology checking plugin for Qgis. Although Qgis allows you to create valid geometries while digitizing, the checks to ensure correctness of existing data is somewhat limited. Every time I use the excellent topology tools in Esri’s ArcMap( a commercial GIS product), I have imagined ways of implementing this on some open source GIS.
Here are some screens of the current working version. It is in the early stages, so don’t get frustrated with its bugs if you happen to see it in Qgis.
rules configuration window