OsmAnd
Topographic and Trekking …
A guide to the main topographic map series covering the Indian Himalaya and how to get them onto your phone.
3 Helpful Features to …
Three features that significantly improve hiking with OsmAnd in India - a dedicated hiking rendering profile, offline Survey of India topo maps, and a large collection of raster map sources including satellite imagery and Strava heatmaps.
Survey of India Topo Maps …
How to get offline Survey of India 1:50,000 topographic maps working as an overlay on OsmAnd.