- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Krishna District of Andhra Pradesh {(NIC : 01 and 10 to 18) (2011-2012)}
- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Krishna District of Andhra Pradesh {(NIC : 30 to 33, 35, 38, 45, 52, 58, 82 and 96) (2011-2012)}
- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Krishna District of Andhra Pradesh {(NIC : 19 to 29) (2011-2012)}