- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 08) under Annual Survey of Industries in Visakhapatnam District of Andhra Pradesh {(NIC : 27 to 33, 35 to 38, 45, 49, 52, 58 and 96) (2009-2010)}
- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 08) under Annual Survey of Industries in Visakhapatnam District of Andhra Pradesh {(NIC : 08, 10, 11, 13, 14 and 16 to 26) (2009-2010)}