Complex sentence: The lake is 60 km long and from 0.2 to 17.5 km wide, and is the second-largest brackish water ecosystem on India's east coast, after Orissa's Chilka Lake.
Split into simpler sentences: The lake is 60 km long and varies from 0.2 to 17.5 km in width. It is the second-largest brackish water ecosystem on India's east coast, after Orissa's Chilka Lake.