Complex sentence: The script took six months to write, with leading Tamil writer Prabanjan and visits to see independence veterans being helpful in understanding the history of the city of Madras between 1945 and 1947.
Split into simpler sentences: The script took six months to write with the help of leading Tamil writer Prabanjan. He also visited independence veterans to understand the history of the city of Madras between 1945 and 1947.