PTAS has been providing GIS based solutions to various organization. Some of our major works include NASA and USAID funded projects through SERVIR Himalaya, European Union funded projects to map project activities. Our technological solutions encompasses ArcGIS Server, ArcGIS .NET Web ADF, ArcGIS JavaScript API, Dojo framework for ArcGIS, Objective C for iPhone, Java, Android, Python Script. We have also worked in Open Source GIS platforms like GeoServer, OpenLayers, Google Map API. Our recent GIS works includes: 1. The Great Himalayan Trail http://118.91.160.238/GHT/ Features: GPS based live tracking of expedition team; integration of trail and way point animation. 2. Kathmandu Valley Mapping http://118.91.160.238/ktmERM Features: Geodatabase for managing various data layers, Network Analysis for Shortest Path Routing & Closest Facility. Web Feature Service (WFS) for editing the data layers online, automating geoprocessing tasks using python script, SMS alert system, crow