- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 08) under Annual Survey of Industries in Krishna District of Andhra Pradesh {(NIC : 01 and 10 to 24) (2010-2011)}
- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 08) under Annual Survey of Industries in Krishna District of Andhra Pradesh {(NIC : 25 to 33, 35, 38, 45, 52, 58 and 96) (2010-2011)}