- Estimates of Principal Characteristics (3-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Thiruvananthapuram District of Kerala {(NIC : 102 to 107, 110, 131, 141, 161, 162 and 170) (2016-2017)}
- Estimates of Principal Characteristics (3-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Thiruvananthapuram District of Kerala {(NIC : 181, 192, 201, 202, 210, 221, 222, 231, 239, 243, 251 and 259) (2016-2017)}
- Estimates of Principal Characteristics (3-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Thiruvananthapuram District of Kerala {(NIC : 261 to 264, 271, 274, 275, 279, 281, 282, 301 and 303) (2016-2017)}
- Estimates of Principal Characteristics (3-Digit Level Classification-NIC 2008) under Annual Survey of Industries in Thiruvananthapuram District of Kerala {(NIC : 309, 310, 325, 331, 332, 452, 454, 591, 952 and 960) (2016-2017)}