The Preamble to the Constitution of India was originally drafted by Pandit Jawaharlal Nehru. He introduced the draft known as the "Objectives Resolution" to the Constituent Assembly on December 13, 1946, which laid down the fundamental principles that shaped the Preamble. This resolution was adopted by the Constituent Assembly on January 22, 1947, and the final Preamble was adopted on November 26, 1949, coming into effect on January 26, 1950

. While Dr. B.R. Ambedkar chaired the Drafting Committee responsible for preparing the Constitution, including its detailed articles, the initial draft of the Preamble was Nehru's work based on his Objectives Resolution

. There are other narratives crediting constitutional adviser B.N. Rau with authorship, but the widely accepted view is that Nehru was the principal originator of the Preamble's text

. In summary, Pandit Jawaharlal Nehru wrote and introduced the draft of the Preamble of India.