by Jains (2.2%), Sikhs (0.9%) and Christians (0.4%). Government institutions and courts Governmental institutions in Kota include: Municipal Corporation Collectorate Office of the Divisional Commissioner Rajasthan Housing Board Command Area Development (CAD) Urban Improvement Trust (UIT) Office of the Superintendent of Police, Inspector General of Police, and the Income Tax commissioner of Kota range. Office of the Divisional Railway Manager, Kota Division, West Central Railway Office of Deputy Commissioner of central excise and service tax Instrumentation Ltd is a Public Sector company based in Kota. Its clientele includes public sector entities such as the Indian Railways, BSNL and VSNL. Presently, it has been shut down. The District court provides court and notary services. Economy The city is the trade centre for an area in which cotton, millet, wheat, coriander and oilseeds are grown; industries include cotton and oilseed milling, textile weaving, distilling, dairying, and the manufacture of metal handcrafts. Kota also has an extensive industry of stone-polishing (tiles) of a stone called Kota Stone, used for the floor and walls of residential and business buildings. Since last 15 years Kota has emerged as an Education hub of the country as producing excellent results in IIT-JEE and medical entrance exams. Kota educational industry A major part of Kota's economy depends on its student population. Every year more than 150,000 students visit and study in Kota to study and prepare for JEE and NEET. The entrance coaching industry in Kota generates business of about 40,000 million from them which further contributes towards the economy of the region. Over time, the economical growth and money generated through education in Kota seems to have overtaken other popular economical activities of the region by contributing more and more with time. Kota Doria or Kota Doriya and Sarees Weaving in Kota was started by Maharana Bhimdev in the 18th century. The Kota saris like most traditional piece of work had started becoming lost before designer Vidhi Singhania moved to Kota and started working with the workers to revive its market. Many textile shops in the city sell different varieties of Kota doriya. These saris have become one of the trademarks of the city. Kota stone The fine-grained variety of limestone quarried from Kota district is known as Kota stone, with rich greenish-blue and brown colours. Kota stone is tough, non-water-absorbent, non-slip, and non-porous. The varieties include Kota Blue Natural, Kota Blue Honed, Kota Blue Polished, Kota