Complex sentence: On 18 January 2011, Patel's term as the Civil Aviation Minister ended and he was appointed as the Union Cabinet Minister of Heavy Industries and Public Enterprise in the same month.
Split into simpler sentences: On 18 January 2011, Patel's term as the Civil Aviation Minister ended. The end of one role saw the beginning of another, as Praful Patel became the Union Cabinet Minister of Heavy Industries and Public Enterprise in the same month.