Western Coastal Plains

• Lies between Western Ghats & Arabian sea from Gujrat in north to Kanyakumari in south
• Narrower & wetter than Eastern plains
• Divided into Malabar coast, Kannada Coast, Konkan coast, Kanyakumari Coast, Kachchh and Kathiawad peninsulas
• Kathiawar Coast → Kutch to Daman (Tapti, Narmada, Sabarmati & Mahi river deposit huge load of sediments in the Gulf of Cambay & form estuaries)
• Konkan Coast → Between Daman & Goa
• Kannada Coast → Goa to Cannanore
• Kanyakumari Coast  → Cannanore to Cape Camorin
• Malabar Coast → Kannada + Kanyakumari Coast 
• Important Ports → Mumbai, Marmagoa, Cochin, Mangalore, Nhava-Sheva and Kandla
• Marked with Lagoons → Ashtamudi & Vembanad called Kayals → Kerala

Eastern coastal Plains

• Lies between Eastern Ghats & Bay of Bengal from Gangetic delta in north to Kanyakumari in south
• Known as Land of Deltas viz. of Mahanadi, Krishna, Kaveri & Godavari
• Broader but drier than Western plains
• Consists of following sub coasts
• Utkal coast → Deltaic plains of Ganga to Mahanadi delta (Famous Chilka lake is located in this plain)
• Andhra Coast        → Utkal plains to Pulicat lake (Contains deltas of Godavari & Krishna Rivers, & famous Kolleru lake)
• Northern Circars → Utkal Coast + Andhra Coast (Between Mahanadi & Krishna)
• Coromandal Coast → Between Krishna & Kanyakumari (Consist of Kaveri Delta)
• Freshwater Kolleru Lake → Between Godavari & Krishna
• Marked with Famous Lagoons → Chilka lake (Orissa) & Pulicat (Tamilnadu)
• Chilka Lake is the largest salt water lake in India
• It lies in the state of Odisha, to the south of the Mahanadi Delta