Decentralized Cadastral GIS & Land Records Mapping Platform in Assam
Digitizing land parcels, boundary polygons, and revenue record integration using PostGIS and MapLibre.
Problem Statement
Land surveyors and regional property administrators across Assam struggled with manual paper maps and disconnected cadastral records, making boundary dispute resolution and instant area verification in Bigha, Katha, and Lessa slow and error-prone.
Key Challenges
- !Integrating legacy paper survey maps with high-accuracy GPS coordinates.
- !Translating irregular geographic polygon areas into standard regional Assam revenue units (Bigha, Katha, Lessa).
- !Enabling field surveyors to record boundary markers in remote areas with zero cellular connectivity.
The Solution
Aajori engineered a cloud and edge GIS platform combining PostGIS spatial databases with a custom Leaflet and MapLibre frontend. We built an offline-first mobile survey tool with spatial SQLite caching that automatically synchronizes polygon vertices upon reconnecting, and computes exact Assam land units with sub-meter precision.
Our Development Process
- 1
Phase 1
Spatial database schema design in PostGIS with coordinate reference system transformations (EPSG:4326 to EPSG:3857).
- 2
Phase 2
Offline mobile collector engineering with background GPS polygon plotting.
- 3
Phase 3
Web-based cadastral viewer with layer switching, parcel search, and area breakdown in Bigha-Katha-Lessa.
- 4
Phase 4
Field deployment and surveyor training across demonstration blocks in Assam.
Technologies Used
Quantitative Outcomes
- Accelerated boundary verification turnaround through instant spatial polygon rendering.
- Digitized cadastral parcel boundaries with coordinate validation and automated topology checks.
- Eliminated manual calculation discrepancies through automated Bigha-Katha-Lessa conversion.
What partners say about our consulting
Evaluating development pipelines launched by our engineers.
“Aajori delivered our custom CRM solution ahead of schedule. Their technical expertise and understanding of our business needs were exceptional. Highly professional team.”
Anurag Borah
CTO, Guwahati
“The forensic tools developed by Aajori are top-notch. Their attention to detail and security-first approach gave us confidence throughout the project lifecycle.”
Bishal Saikia
VP of Product Security, Jorhat
“We partnered with Aajori for our enterprise cloud migration. Their team is highly professional, responsive, and navigated complex legacy databases with ease.”
Jahnabi Kalita
Director of Innovation, Dibrugarh
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