- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Krishna District of Andhra Pradesh {(NIC : 01, 10, 11, 13 to 18 and 20 to 25) (2020-2021)}
- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Krishna District of Andhra Pradesh {(NIC : 27 to 29, 31 to 33, 35, 38, 45, 52 and 58) (2020-2021)}