Complex sentence: Saurashtra has been a flourishing region and rich in natural resources since ancient times, while having gone through several droughts especially during 20th century, water resources and its related dynamics have influenced the region and its agro-economy to certain extent.
Split into simpler sentences: Saurashtra has been a flourishing region and rich in natural resources since ancient times, while having gone through several droughts especially during the 20th century. Water resources and its related dynamics have influenced the region and its agro-economy to a certain extent.