Explanation:

• Majority of the rivers in the country flow east to join the Bay of Bengal, while a few rivers defy the odds and flow west! The Arabian Sea is the final destination of these west-flowing rivers.
• The Peninsular River flowing towards the west has short courses and most of these rivers are originates on Western Ghats.
• The important peninsular rivers flowing towards the west are Sabarmati, Mahi, Shetrunji, Bhadra (Bhadar), Vaitarna, Kalindi, Bedti, Sharavati, Bharsthpuzha, Periyar and Pamba.
• These rivers cover the states of Gujarat, Maharashtra, Karnataka and Kerala and hence they are the only drainage system other than rainwater for their agricultural activities.

Source: Class 11th NCERT