The correct answer is: d) All of the above.
The Geological Survey of India (GSI) is a government agency that is responsible for the geological survey of India. It was established in 1851 and is headquartered in Kolkata. The GSI has a wide range of functions, including:
- Mineral exploration: The GSI conducts geological surveys to identify and assess mineral resources. It also provides technical assistance to the mining industry.
- Regulating mining activities: The GSI is responsible for regulating mining activities in India. It issues mining leases and monitors compliance with environmental regulations.
- Assessment of mineral reserves: The GSI assesses the mineral reserves of India. This information is used by the government to develop mining policies and to attract investment in the mining sector.
The GSI also conducts research on a variety of geological topics, including the origin and evolution of the Indian subcontinent, the distribution of mineral resources, and the causes of earthquakes and landslides.
The GSI is a valuable resource for the government and the mining industry. It provides essential information on the geological resources of India and helps to ensure that mining activities are conducted in a safe and environmentally responsible manner.