Which of the following statements is not correct?

Statement (1) is not correct. Authoritative textbook passages state that the Western Ghats’ elevation increases from north to south, so they are relatively higher in the southern region, not the northern [1]. The highest peak of the Western Ghats is Anaimudi/Anamudi (2,695 m), confirming statement (2) as correct [2]. The Tapi (Tapti) rises in the Satpura ranges and flows south of the Satpura, so statement (3) is correct [3]. Geologically, both the Narmada and the Tapti valleys are described as rift/graben type valleys (old rift valleys), supporting statement (4) as correct [3]. Hence option 1 is the incorrect statement.

Sources

1. [1] CONTEMPORARY INDIA-I ,Geography, Class IX . NCERT(Revised ed 2025) > Chapter 2: Physical Features of India > The Peninsular Plateau > p. 12
2. [2] INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Deccan Plateau > p. 13
3. [3] CONTEMPORARY INDIA-I ,Geography, Class IX . NCERT(Revised ed 2025) > Chapter 3: Drainage > The Tapi Basin > p. 21
4. [4] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > 2. The South Central Highlands > p. 55