@RenjithNayar-6960 I have tried this query with the same search criteria and the response does include the URLs for thumbnail and the original image as mentioned in the documentation.
A Boolean value that determines whether the image's contentUrl contains a URL that points to a thumbnail of the original article's image or the image itself.
If the article includes an image, and this parameter is set to true, the image's contentUrl property contains a URL that you may use to download the original image from the publisher's website. Otherwise, if this parameter is false, the image's contentUrl and thumbnailUrl URLs both point to the same thumbnail image.
The default is false.
Use this parameter only with the News Search API. Do not specify this parameter when calling the Web Search API. Trending Topics ignores this parameter.
The first response here indicates the following URLs
GET https://resource.cognitiveservices.azure.com/bing/v7.0/news/search?q=Corona+site:ndtv.com OR site:indiatvnews.com OR site:thehindu.com&count=50&offset=0&mkt=en-us&safeSearch=Moderate&originalImg=true&cc=IN&language=en&freshness=Day HTTP/1.1
"name": "Can't final yr exams be MCQ, assignment based: HC asks UGC",
"url": "https:\/\/www.indiatvnews.com\/news\/india\/ugc-final-year-exams-mcq-assignment-based-delhi-high-court-636270",
"image": {
"contentUrl": "https:\/\/resize.indiatvnews.com\/en\/resize\/newbucket\/715_-\/2020\/07\/delhi-high-court-1595421749.jpeg",
"thumbnail": {
"contentUrl": "https:\/\/www.bing.com\/th?id=ON.B82C2618BF546D6DB7D3B5C3E2ADC3CE&pid=News",
"width": 700,
"height": 391
The URLs
Image URL https://resize.indiatvnews.com/en/resize/newbucket/715\_-/2020/07/delhi-high-court-1595421749.jpeg
Thumbnail URL https://www.bing.com/th?id=ON.B82C2618BF546D6DB7D3B5C3E2ADC3CE&pid=News
As mentioned the original image and thumbnail URLs are different. If the OriginalImg is set to false both the URLs are same and default to thumbnail URL.