Arrange the following hills of southern India from north to south : 1. Nilgiri 2. Cardamom 3. Nallamala 4. Anaimalai Select the correct answer using the code given below :

The correct north-to-south arrangement of the southern Indian hills is Nallamala, Nilgiri, Anaimalai, and Cardamom. The Nallamala Hills are part of the Eastern Ghats, located primarily in Andhra Pradesh and Telangana [t2]. Moving south, the Nilgiri Hills form the mountain knot where the Western and Eastern Ghats meet [c3]. South of the Nilgiris lies the Palghat Gap, and immediately south of this gap are the Anaimalai Hills [c3][c4]. The Cardamom Hills are situated further south in the Western Ghats, extending towards the southern tip of the peninsula [c1][t1]. Latitudinally, Nallamala is the northernmost (approx. 15°-16°N), followed by Nilgiri (approx. 11°N), Anaimalai (approx. 10°N), and Cardamom (approx. 9°N) [t4][t6]. This sequence is a standard geographical progression from the Deccan Plateau's eastern edge down through the southern Western Ghats [t1].

Sources

1. [1] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > 7. The Western Ghats > p. 58
2. [2] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > 7. The Western Ghats > p. 61
3. [3] INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Deccan Plateau > p. 12