Explanation:

Konkan, also known as the Konkan Coast or Kokan, is a rugged section of the western coastline of India. It is a 720 km long coastline. It consists of the coastal districts of western Indian states of Karnataka, Goa, and Maharashtra. The ancient Saptakonkana is a slightly larger region.
The Sahyadri Mountain range ("Western Ghats") forms the eastern boundary of the Konkan, and the Arabian Sea marks the western boundary. The southern boundary is the Gangavali River. The Mayura River forms the northern boundary.