Complex sentence: During November 2012, Guinness Book of World Records recorded a beautiful feat of largest organized crowd of over 3,600 women performing the Keralite Kaikottikali dance around a large flower-rangoli at the "Mumbai Pooram" festival, Dombivli East.
Split into simpler sentences: During November 2012, the largest organized dance of over 3,600 women performing the Keralite Kaikottikali dance was recorded by the Guinness Book of World Records. The dance was performed around a large flower-rangoli at the "Mumbai Pooram" festival, Dombivli East.