- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 08) under Annual Survey of Industries in Krishna District of Andhra Pradesh {(NIC : 27 to 33, 35, 38, 45, 52, 58 and 96) (2009-2010)}
- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 08) under Annual Survey of Industries in Krishna District of Andhra Pradesh {(NIC : 10 to 26) (2009-2010)}