- Estimates of Principal Characteristics (3-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Koppal District of Karnataka {(NIC : 201, 210, 239, 241, 351, 352, 452 and 581) (2012-2013)}
- Estimates of Principal Characteristics (3-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Koppal District of Karnataka {(NIC : 016, 104 to 107, 110 and 120) (2012-2013)}