Some Reverse GeoCode queries return null - here-api

Question

We are attempting to retrieve district information for a number of locations.
However the Here API returns no values.
These locations are in the state of Arunachal Pradesh and Jammu & Kashmir in India.
I tested with a number of latitude/longitudes for these states. None of them return any data.
https://reverse.geocoder.ls.hereapi.com/6.2/reversegeocode.json?prox=28.2180,94.7278&mode=retrieveAreas&apiKey=XXXXXXXXXXXXXXXXXXXXXXXXXXX
Response:
{
"Response": {
"MetaInfo": {
"Timestamp": "2020-08-05T15:11:46.711+0000"
},
"View": []
}
}
Even when I choose a location from Google Maps and use that in the API call, it still returns null.
https://reverse.geocoder.ls.hereapi.com/6.2/reversegeocode.json?prox=27.083227, 93.605954&mode=retrieveAreas&apiKey=XXXXXXXXXXXXXXXXXXXXXXXXXXX
Response:
{
"Response": {
"MetaInfo": {
"Timestamp": "2020-08-05T15:11:46.711+0000"
},
"View": []
}
}

Answer 1

The Geocoding and Search API v7 is recommended.
https://revgeocode.search.hereapi.com/v1/revgeocode?at=28.2180%2C94.7278&lang=en-US
{
"items": [
{
"title": "Jomlo Mobuk, Arunachal Pradesh, India",
"id": "here:cm:namedplace:22803761",
"resultType": "locality",
"localityType": "city",
"address": {
"label": "Jomlo Mobuk, Arunachal Pradesh, India",
"countryCode": "IND",
"countryName": "India",
"state": "Arunachal Pradesh",
"county": "Siang",
"city": "Jomlo Mobuk",
"postalCode": "791001"
},
"position": {
"lat": 28.22394,
"lng": 94.85208
},
"distance": 0,
"mapView": {
"west": 94.72013,
"south": 28.17345,
"east": 94.9472,
"north": 28.29374
}
}
]
}