Hi Udarian, 
Thank you for your comments. I referred the following resources and tagged as private according to the community guidelines: https://wiki.openstreetmap.org/wiki/Tag:access=employees?uselang=en 
https://help.openstreetmap.org/questions/36520/access-for-employees-only/ 
Please let me know if this approach was in conflict with the customs of the local community and share any documentation, if available. I will be happy to discuss how to move forward and improve the data.