Sure Srihari. I grew up here. So, had to take it up.

Here are my sources:
For new boundaries - I used a georss feed from bhuvan for telangana(mar 2017 file) to trace the new boundaries changes manually on josm and state portal maps.

For boundary relation mapping - used telangana state portal to make sure I got them right

For admin centre mapping and right naming - wikipedia list of telangana districts

Aditya

Micheal,

The tool I'm currently using is https://osm.wikidata.link/ (github: https://github.com/EdwardBetts/osm-wikidata/). The matcher looks through several aspects on both ends(OSM and Wikidata) and showcases me how it has matched and how apt it is. I've been tagging places only when I'm confident of the match and leave several when I'm not sure, to the community. So, I believe I've not been violating any CoC. But I hear you. Looping in @Edward, who wrote the tool to answer you better on this.

Aditya Thoomati