António Caetano Pacheco was born in Margao, Salcete, Goa on November 12, 1800. He studied Latin under the guidance of Father Joao Manuel Pacheco ad completed the study of Philosophy at the age of 14. He then started his study of Theology as well as the study of Law. He then attained his Law degree and practiced law in Salcete and the Municipality of Margao. In the years 1823 and 1827 he was chosen as a provincial elector, and he provided services to the election of the deputy Bernardo Peres da Silva. In 1836 he was elected president of the municipal council of Salcete. In 1839 he was deputy to the court and in this capacity, he was sent to Lisbon on March 18, 1840. However, on reaching Lisbon, he found that the chamber was dissolved, and he only could have a seat on the open courts on May 2, 1840. He was again elected president in 1842, and he presented many proposals, including some for the welfare of the overseas population of Goa.
Congressman Pacheco was a member of many associations in Portugal and abroad, he was also a member of the maritime and colonial association of Lisbon and that of the extinction of slavery in France. Pacheco returned from Lisbon to his homeland of Goa in November 1849 and died of an apoplectic attack on May 2, 1850; His papers contained vague notes and confused reminiscences about a colossal work that he intended to write about the history of India and with reference to its first epochs of genuine government. He died at the age of 50.