Black revolution is related to the production of crude oil.

Explanation:
The Black Revolution refers to the significant increase in the production of crude oil in India during the 1970s and 1980s. It was a crucial step towards achieving self-sufficiency in the country's energy needs.

Key Points:

1. Context:
- The Black Revolution took place in the 1970s and 1980s in India.
- It aimed to boost crude oil production in the country.

2. Significance:
- Crude oil is a vital natural resource used for various purposes, including energy production, transportation, and manufacturing.
- Increasing domestic production of crude oil reduces reliance on imports, making a country more self-sufficient and economically stable.

3. Factors contributing to the Black Revolution:
- Technological advancements: The development and implementation of advanced drilling techniques and equipment played a significant role in increasing oil production.
- Exploration and discovery: Extensive exploration efforts led to the discovery of new oil fields, contributing to the overall increase in production.
- Government policies and initiatives: The Indian government introduced several policies and initiatives to encourage investment in the oil sector and promote domestic production.
- Collaboration with foreign companies: Partnerships with international oil companies brought advanced technology, expertise, and investments to enhance oil production in India.

4. Impact:
- Energy security: The Black Revolution helped reduce India's dependence on imported crude oil, ensuring a reliable and secure energy supply.
- Economic growth: Increased domestic oil production creates employment opportunities and stimulates economic growth by supporting various industries.
- Foreign exchange savings: Import substitution through increased domestic production saves foreign exchange that would otherwise be spent on oil imports.
- Strategic advantage: A self-sufficient oil sector provides a strategic advantage in times of geopolitical instability or disruptions in global oil markets.

In conclusion, the Black Revolution is related to the production of crude oil in India. This revolution aimed to increase domestic oil production, reduce reliance on imports, and achieve energy security and economic growth for the country.