The government of Telangana aims to promote the development of:

Downstream industries based on minerals
Sustainable mining practices
Mineral-based exports
All of the above

The correct answer is D.

The government of Telangana aims to promote the development of downstream industries based on minerals, sustainable mining practices, and mineral-based exports.

Downstream industries are those that use raw materials to produce finished products. In the case of minerals, downstream industries could include manufacturing, construction, and energy. By promoting the development of downstream industries, the government of Telangana hopes to create jobs and boost the economy.

Sustainable mining practices are those that minimize the environmental impact of mining. This includes using efficient mining methods, recycling and reusing materials, and restoring land after mining is complete. The government of Telangana is committed to sustainable mining practices in order to protect the environment and ensure the long-term viability of the mining industry.

Mineral-based exports are those that are sold to other countries. Telangana is a major producer of minerals, including iron ore, bauxite, and limestone. The government of Telangana is working to increase the value of mineral-based exports by improving the quality of minerals and developing new markets.

By promoting the development of downstream industries, sustainable mining practices, and mineral-based exports, the government of Telangana is hoping to create a more prosperous future for the state.