The Survey of India is India's central engineering agency in charge of mapping and surveying. Set up in 1767 to help consolidate the territories of the British East India Company, it is one of the oldest Engineering Departments of the Government of India.
The Survey of India's distinguished history includes the handling of the mammoth Great Trigonometric Survey under William Lambton and George Everest and the discovery of Mt. Everest.
The Great Trigonometric Survey was a project of the Survey of India throughout most of the 19th century. It was piloted in its initial stages by William Lambton, and later by George Everest. Among the many accomplishments of the Survey were the demarcation of the British territories in India and the measurement of the height of the Himalayan giants: Everest, K2, and Kanchenjunga.

The great trigonometric series spanning the country from North to South & East to West are some of the best geodetic control series available in the world. The scientific principles of surveying have since been augmented by the latest technology to meet the multi- disciplinary requirement of data from planners and scientists.

We offer the following Surrvay of India maps.