- Estimates of Principal Characteristics (3-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Malappuram District of Kerala {(NIC : 152, 161, 162, 170, 181, 192, 201, 202, 210, 221, 222 and 239) (2019-2020)}
- Estimates of Principal Characteristics (3-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Malappuram District of Kerala {(NIC : 103, 104, 105, 106, 107, 108, 110, 120, 131, 139, 141 and 143) (2019-2020)}
- Estimates of Principal Characteristics (3-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Malappuram District of Kerala {(NIC : 242, 251, 259, 261, 271, 273, 292, 303, 310, 321 and 581) (2019-2020)}