Lal Bahadur Shastri, India's second Prime Minister, died in Tashkent, Uzbekistan, on January 11, 1966 after he signed the Tashkent Declaration, ending the 1965 India-Pakistan War. The official cause of death was a heart attack. However, the circumstances surrounding his death remain a mystery, with persistent rumors of poisoning.
No official investigation occurred in the 50 years following his death.
Shastri served as Prime Minister from 1964 until his death. He played a significant role in India's independence movement, facing arrest for protesting British rule. A close follower of Mahatma Gandhi, he was known for his simplicity and honesty.
He coined the popular slogan "Jai Jawan Jai Kisan" (Hail the soldier, Hail the farmer). In 1965, Shastri decided to return land captured by the Indian Army in the Rann of Kutch to Pakistan, promoting peace and responding to China's claim on Arunachal Pradesh. India observes Shastri's death anniversary as National Integrity Day.