The Survey of India was established in 1767 by the British East India Company.

James Rennell was the first Surveyor General of India, serving from 1767 to 1777.

The Survey of India is responsible for mapping and surveying of India, geodetic surveys, topographic surveys, and other related activities.

Cadastral survey is not conducted by the Survey of India.

The Great Trigonometrical Survey (GTS) was a survey of the Indian subcontinent conducted by the Survey of India from 1800 to 1850.

William Lambton was the first Superintendent of the Great Trigonometrical Survey, serving from 1800 to 1823.

According to the Survey of India, the highest peak in India is Mount Everest, with an elevation of 8,848 meters (29,029 feet).

The Vindhya Range is not a mountain range in India.

According to the Survey of India, the longest river in India is the Ganges, with a length of 2,525 kilometers (1,569 miles).

The Mekong is not a river in India.

According to the Survey of India, the largest state in India by area is Rajasthan, with an area of 342,239 square kilometers (132,139 square miles).

Nepal is not a state in India.

The capital of India is New Delhi.

Sikkim is not a union territory of India.

According to the Survey of India, the total area of India is 3,287,263 square kilometers (1,269,219 square miles).