- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Srikakulam District of Andhra Pradesh {(NIC : 08, 10, 11, 13 and 17 to 23) (2008-2009)}
- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Srikakulam District of Andhra Pradesh {(NIC : 24, 25, 27 to 29, 35, 36 and 45) (2008-2009)}