- Estimates of Principal Characteristics (3-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Tumkur District of Karnataka {(NIC : 103 to 107, 139, 162, 170, 191, 202, 222, 239, 242 and 243) (2008-2009)}
- Estimates of Principal Characteristics (3-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Tumkur District of Karnataka {(NIC : 251, 259, 261, 265, 271, 281, 282, 329, 383 and 454 ) (2008-2009)}