When were separate electorates first created by the British Colonial Government?

The correct option is 1909.

Step-by-Step Explanation:

Separate electorates were first introduced in British India under the Indian Councils Act 1909, which is also commonly known as the Morley-Minto Reforms (named after John Morley, the Secretary of State for India, and Lord Minto, the Viceroy of India).
This act created a separate electorate for the Muslim community, allowing Muslim voters to elect their own representatives to the legislative councils. This policy of separate electorates was a significant step in the colonial administration's strategy, which later had profound implications for the political landscape of the Indian subcontinent.