- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Palakkad District of Kerala {(NIC : 10, 11, 13, 14 and 16 to 23) (2017-2018)}
- Estimates of Principal Characteristics (2-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Palakkad District of Kerala {(NIC : 24 to 28, 31, 32, 38, 45 and 82) (2017-2018)}