The correct option is Cardamom hills - Goa.
Explanation
The Western Ghats, also known as the Sahyadri, are a continuous chain of mountains running parallel to the western coast of India. They exhibit regional variations in nomenclature based on the states they traverse.
Analysis of the Pairs:
- Sahyadri - Maharashtra Sahyadri - Maharashtra: This pair is correctly matched. In Maharashtra and Karnataka, the Western Ghats are locally referred to as the Sahyadri range.
- Nilgiri hills - Karnataka and Tamil Nadu Nilgiri hills - Karnataka and Tamil Nadu: This pair is correctly matched. The Nilgiri Hills form the junction of the Western Ghats and the Eastern Ghats, spanning across Tamil Nadu, Kerala, and Karnataka.
- Anaimalai hills - Kerala Anaimalai hills - Kerala: This pair is correctly matched. The Anaimalai Hills (Elephant Mountains) are located south of the Palghat Gap and are distributed between Kerala and Tamil Nadu. Anamudi, the highest peak in Peninsular India, is located here.
- Cardamom hills - Goa Cardamom hills - Goa: This pair is incorrectly matched. The Cardamom Hills (Yela Mala) are located in the southeastern part of Kerala and the southwestern part of Tamil Nadu. They are situated far south of Goa.
Key Takeaway: The Western Ghats are known as Sahyadri in Maharashtra, Nilgiris at the tri-junction of Karnataka-Kerala-Tamil Nadu, and Cardamom Hills in the southernmost part of Kerala and Tamil Nadu.