@Helmchen42 - Can you please document this mulitpolygon tag on the wiki first and then fix the typo here.
Also I'm entirely sure if multipolygons are proposed to be used or are in currently use to map River basins. Can you please share any existing relations? Couldn't find them on taginfo.

Seems to have deleted by mistake and may be this edit has to be reverted.

Thank you for noticing. It is transliterated Kannada language name of this place in the ISO 15919 format - name:kn:iso15919=*
I have updated this node accordingly.

I think it is because of the phone's GPS which points maps.me to add features at these places. Since satellite imagery isn't seen while adding in maps.me, objects gets added wherever the user taps on the map.

You can delete the nodes in iD editor by clicking on the node you wish to delete and then clicking on delete icon. But to delete the entire changeset, may have to revert it. You can check available options on OpenStreetMap wiki to do this - osm.wiki/Change_rollback

Thank you for doing this.

Similar cases of Maps.me edits are seen in other parts of the country.

I think this is because of limited POI categories available in Maps.me app which is the editor in this case. But anyway if suitable category is not found, its not a good idea to map with false tags.

Sure, done here -changeset/40776350

Are these villages? I don't see a note here. I can change these POIs to villages if you can confirm.

It doesn't seem to me as the official name of the road here. But would be great if anyone with the local knowledge of this place can look here.

Looks like the user was testing routes. Sandbox for editing can be done at - http://master.apis.dev.openstreetmap.org

I have updated name tag to Urdu since name=* is used for English by default.

Similar changesets by other user here - changeset/39367771

Seems to be related in some way.

User seems to continue adding wrong tags - changeset/39376307
Have also messaged the user requesting to look into these.

Hi Sathish,

You are continuing to add incorrect tag(highways=residential) along with correct tag(highway=residential) tag. Please see related comment here - changeset/39367771

Hi Rohit, here too you have added ways on top of existing ways without tagging anything. Please see my other comment - changeset/36672289

Hi Rohit, thanks for contributing to OSM with lots of ways!
I see that you have not been tagging these ways and they seem to overdrawn on existing ways. Please don't simply upload gps data if you are using it as a source. Request you to have a look at ways once again and correct them as required.
Thanks

Forgot to paste the changeset link - changeset/35052198

Yes, that's a roundabout with Mahatma Ganhiji's(so the name Gandhi Chowk) memorial statue at the center. I've updated it along with road corrections which were deleted by users who drew those buildings.
Thank you for pointing it out. :) Happy Mapping!