"Paradise" is the most popular multi coloured granite available in Krishnagiri. Black granite is available in Hosur and Denkanikottai. Granite processing units, which make slabs of granite, finished and decorated beautifully is located mainly in Hosur surroundings. The multi coloured paradise slabs are being exported to America, England, Australia and some other European countries in large quantities. A variety of quartz stones from Denkanikottai and White metal called Limestone from Uthangarai are mined.

Krishnagiri District is more suitable for cultivation of Horticulture crops. Other Plantation crops, medicinal plants, Fruits, Vegetables, Spices, and flowers are grown well by way of its moderate climate, high altitude and fertility of the soil.

The important crops of Krishnagiri District are Paddy, Maize, Ragi, Banana, Sugarcane, Cotton, Tamarind, Coconut, Mango, Groundnut, Vegetables and Flowers. The district has an excellent scope for agri business. Regional Agricultural Research Center of Tamil Nadu Agricultural University is functioning efficiently at Paiyur in Kaveripattinam union since 1973 AD.

5069 acres of land is under mulberry cultivation in Krishnagiri District. This has the employment opportunity for about 24,345 persons at the rate of 5 per acre.

Adventity, a Mumbai-based end-to-end Knowledge and Business Process Outsourcing company, has partnered with FOSTeRA (Fostering technologies in rural areas) in this venture. FOSTeRA, an ISO 9001-2000 certified rural BPO, an initiative of the Krishnagiri district administration, will carry forward its operations in both voice and non-voice modules.