Complex sentence: With its headquarters at Dehra Dun, the Survey of India today has 18 Civil Engineering Divisions ranging from the prediction of tides to aerial survey, it has 23 Geo-spatial Data Centers spread across India, each catering to the respective administrative area.
Split into simpler sentences: With its headquarters at Dehra Dun, the Survey of India today has 18 Civil Engineering Divisions ranging from the prediction of tides to aerial survey. It has 23 Geo-spatial Data Centers spread across India, each catering to the respective administrative area.