3. c. 155), also known as the Charter Act 1813, was an act of the Parliament of the United Kingdom that renewed the charter issued to the British East India Company, and continued the Company's rule in India.

The act expressly asserted the Crown's sovereignty over British India, allotted 100,000 rupees annually for the improvement of literary and scientific knowledge, and permitted Christian missionaries to propagate English and preach their religion in Company's territories.

The power of the provincial governments and courts in India over European British subjects was also strengthened by the Act, and financial provision was also made to encourage a revival in Indian literature and for the promotion of science.

[2] Prior to the 1813 legislation, the British Parliament and the East India Company had refused to countenance missionary activity in India, and proscribed the Bible and forbade religious education, in support of a policy of religious neutrality and on the basis that, if exposed to Christianity, Indians may have felt threatened and thus would have posed a threat to British commercial ventures.

[3] The lifting of the prohibition, when it occurred, was not however a victory for missionaries, and did not precipitate official support for their activity; instead, they were subject to stringent checks.