- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Guntur District of Andhra Pradesh {(NIC : 01 and 10 to 18) (2012-2013)}
- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Guntur District of Andhra Pradesh {(NIC : 29, 31 to 33, 35, 45 and 52) (2012-2013)}
- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Guntur District of Andhra Pradesh {(NIC : 19 to 25, 27 and 28) (2012-2013)}