Chattisgarh Mineral Reserves (in millions of tonnes)
(as per Chattisgarh government web site)

Coal: 35000
Iron ore: 2336     
Lime stone: 3580    
Dolomite: 606    
Bauxite: 96    
Cassiterite: 29  

More details on location of minerals and government policy on their locations can be found at: http://chhattisgarh.nic.in/mining/mining1.htm.