The Survey of India is the country`s principal geospatial, mapping, and survey organization. Each option here suggests a different Indian government ministry.

Option 1 - Ministry of Defence: This ministry is responsible for coordinating and supervising all the governmental agencies and functions of the government relating to defence. Although Survey of India provides services that might aid National Defence, it`s not directly under this ministry.

Option 2 - Ministry of Environment and Forests: This ministry is responsible for planning, promoting, coordinating, and executing the country`s environmental policies and programs. However, the Survey of India does not fall under this ministry.

Option 3 - Ministry of Home Affairs: This ministry is responsible for the maintenance of internal security and domestic policy. The Survey of India is not part of this ministry.

Option 4 - Ministry of Science and Technology: This ministry is tasked with promoting scientific and technological research and its application in India. The Survey of India, being a scientific entity involved in collecting geospatial data, falls under this ministry.

So, the given correct answer is precise and accurate - the Survey of India is under the Ministry of Science and Technology.