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|Born||1 January 1916|
|Died||22 September 2000|
|Resting place||Swargadwar, Puri|
|Other names||D.N. Choudhury|
|Known for||First Odia chief conservator of forest and First Odia IFS.|
|Children||2 Sons and 2 Daughters|
|Parent(s)||Father: Raghunath Choudhury|
Dayanidhi Choudhury, also known as D.N. Choudhury(Odia: ଦୟାନିଧି ଚୌଧୁରୀ)(1 January 1916 – 22 September 2000) was the first Odia IFS (Indian Forest Service) and he is the former Chief Conservator of Forest, Govt. of Odisha and during his period lot of developments happened with respect to forest and wildlife conservation, that includes Nandankanan Zoological Park at Bhubaneswar, Similipal Elephant/Tiger reserve in 1956, which is now a prominent National Park in India.
- Official website of: "Forest Research Institute (India), Dehradun"
- Rao, V. S. 1961. 100 years of Indian Forestry. Souvenir. Forest Research Institute. Dehradun. scanned version Pg-153 (xi) Orissa
- The Indian Forester, Volume 97, Pg-63,119