Thank you for your response.
We are using the road network for rural areas - DRRP, downloaded from https://geosadak-pmgsy.nic.in/opendata/. However, we don't use it to directly import to OSM (if there is a way to do that, and we haven't tried this yet), because we understand the potential topology errors when bulk importing data to OSM, especially the road network. So we don't choose bulk import approach but update it one by one using the DRRP road as a custom basemap. We will study your link https://wiki.openstreetmap.org/wiki/Organised_Editing to understand, follow and apply it strictly to our updating strategy and guideline.
Thanks and best regards! 