Yes, Indias Chhatarpur Red Granite can be used for exterior applications in very dusty climates. Granite is a durable and weather-resistant material that can withstand varying environmental conditions, including dusty climates. However, it is important to ensure proper installation and maintenance to prevent any potential damage or discoloration caused by extended exposure to dust and other environmental pollutants. Regular cleaning and sealing may be required to maintain the granites appearance and longevity in such conditions.