- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 08) under Annual Survey of Industries in Prakasam District of Andhra Pradesh {(NIC : 01, 08, 10 to 14, 16 to 18 and 20) (2010-2011)}
- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 08) under Annual Survey of Industries in Prakasam District of Andhra Pradesh {(NIC : 21 to 25, 27, 35, 36, 45 and 52) (2010-2011)}