The 'Tryst with Destiny' speech was delivered by Jawaharlal Nehru, India's first Prime Minister, on the midnight of August 14-15, 1947, marking India's independence from British rule. The speech is one of the most famous in Indian history, emphasizing the moment of destiny and the challenges ahead. The other options are incorrect - Gandhi was not present at the midnight celebrations, Shastri was not yet a major leader, and Bose was not involved in the independence transfer.