Upendranath Brahmachari, Physician, Scientist
Physician, Scientist

Upendranath Brahmachari

Born 19 December 1873 · West Bengal — Died 6 February 1946

Synthesized urea-stibamine in 1922 to effectively treat kala-azar.

Rai Bahadur Sir Upendranath Brahmachari ; 19 December 1873 – 6 February 1946) was a prominent Indian physician and scientist. In 1922, he synthesised urea-stibamine (carbostibamide) and demonstrated its effectiveness in treating kala-azar.

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A detail that
surprised us

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Upendranath Brahmachari regarded his modest laboratory as a “place of worship,” underscoring the sacredness with which he approached his research.

The Story

1
In 1922, at Calcutta, Upendranath Brahmachari synthesized urea-stibamine, a compound that transformed treatment for kala-azar, a deadly parasitic disease devastating Bengal and Assam.
2
🎓 Before this breakthrough, Brahmachari earned a BA with honors in Mathematics and Chemistry from Hooghly Mohsin College in 1893 and an MD from the University of Calcutta in 1902, excelling in both Medicine and Surgery in 1900.
3🦠 In 1922, he identified a new form of leishmaniasis—post-kala-azar dermal leishmaniasis—marked by facial eruptions without fever, expanding scientific understanding of the disease’s manifestations.
4🏅 Awarded the Kaisar-i-Hind Gold Medal and Rai Bahadur title in 1924, Brahmachari was knighted by the British Government in 1934, yet was nominated but never received the Nobel Prize despite multiple nominations in 1929 and 1942.

🏅 Awards & Honours

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title of Rai Bahadur and the Kaisar-i-Hind Gold Medal

🔍 One thing most people don't know

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Brahmachari was nominated for the Nobel Prize twice in 1929 and five times in 1942, yet never received it, with some sources suggesting his ethnicity influenced the Nobel committee's decisions.

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Through the Years

1 photograph from the archives
Upendranath Brahmachari portrait showing the Indian scientist and medical practitioner.
Upendranath Brahmachari portrait showing the Indian scientist and medical practitioner.

🗓️ A Life in Moments

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Birth
Birth in Sardanga, West Bengal
Upendranath Brahmachari was born in Sardanga village near Purbasthali, Bengal Presidency, into a family with a medical background.
1873
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Education
BA Honors in Mathematics and Chemistry
Completed BA with honors from Hooghly Mohsin College, laying foundation for interdisciplinary scientific work.
1893
📚
Education
Top Medical and Surgery Exams
Ranked first in Medicine and Surgery at University of Calcutta, earning Goodeve and Macleod awards.
1900
📚
Education
PhD on Haemolysis Studies
Awarded PhD from University of Calcutta for research in physiology, merging medical and chemical sciences.
1904
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Career
Synthesizes Urea-Stibamine
Developed urea-stibamine at Calcutta Medical College, pioneering kala-azar treatment.
1922
🏅
Award
Receives Kaisar-i-Hind Medal and Rai Bahadur
Honored by British authorities with Kaisar-i-Hind Gold Medal and Rai Bahadur title for medical service.
1924
🏅
Award
Knighted by British Government
Received knighthood for contributions to tropical medicine and public health.
1934
🕊️
Death
Death in Calcutta
Passed away in Calcutta after decades of medical research and teaching.
1946
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🗝️Discoveries

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01 / 05
🏆ACHIEVEMENT

In 1922, Brahmachari discovered post-kala-azar dermal leishmaniasis, a skin condition arising after kala-azar infection, previously unrecognized in tropical medicine.

02 / 05
🏆ACHIEVEMENT

Brahmachari earned his PhD in 1904 for his research on 'Studies in Haemolysis' from the University of Calcutta, showing early interdisciplinary work between medicine and chemistry.

03 / 05
🔍LESSER KNOWN

Despite his scientific stature, Brahmachari’s name is often overshadowed, with a Kolkata street bearing his name rarely recognized, reflecting broader neglect of Indian scientists in public memory.

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🎙️ Speeches & Recordings

These recordings preserve the legacy of Bharat's icons
History of Upendranath Brahmachari | Tamil

🌱 What changed because of them

Brahmachari’s synthesis of urea-stibamine revolutionized kala-azar treatment, saving countless lives in India and beyond. His work influenced tropical medicine education at institutions like Carmichael Medical College and remains commemorated through infrastructure like the building named after him at Nil Ratan Sircar Medical College. Despite British honors, his contributions highlight challenges Indian scientists faced in gaining international recognition during colonial times.

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