- Selected Characteristics of Major Industry Group (NIC 2008-Three Digit) under Annual Survey of Industries in Ballia District of Uttar Pradesh (2019-2020) - Part I
- Selected Characteristics of Major Industry Group (NIC 2008-Three Digit) under Annual Survey of Industries in Ballia District of Uttar Pradesh (2019-2020) - Part II
- Fuels Consumed by Major Industry Group (NIC 2008-Three Digit) under Annual Survey of Industries in Ballia District of Uttar Pradesh (2019-2020)