Complex sentence: On this occasion it became a motive to promote Lucknow Mahotsav's Art, Culture, and Tourism for national and international tourists, the decision to organize the Lucknow Festival was taken.
Split into simpler sentences: On this occasion it became a motive to promote Lucknow Mahotsav's Art, Culture, and Tourism for national and international tourists. The decision to organize the Lucknow Festival was taken.