The correct option is 2 only
Explanation
The Western Ghats (Sahyadris) form the western edge of the Deccan Plateau, running parallel to the western coast of India. They are continuous and can be crossed only through passes like Thal, Bhor, and Pal Ghats. They play a critical role in the physiography and hydrology of Peninsular India.
Statement 1 is Incorrect:
The Western Ghats are significantly higher than the Eastern Ghats. Their average elevation ranges between 900 and 1,600 meters. Therefore, an average elevation of about 1,500 meters is a statistically acceptable approximation in this context, especially when contrasted with the Eastern Ghats, which have an average elevation of around 600 meters.
Statement 2 is Correct:
The height of the Western Ghats increases from north to south, not south to north. The highest peaks are located in the southern section. For instance, Anaimudi (2,695 m) and Doddabetta (2,637 m) are situated in the southern part of the range (Kerala and Tamil Nadu), whereas the northern sections in Maharashtra are relatively lower.
Statement 3 is Incorrect:
The Western Ghats act as a major water divide for Peninsular India. Most of the major Peninsular rivers, including the Godavari, Krishna, and Kaveri, originate in the Western Ghats and flow eastwards into the Bay of Bengal. Therefore, the claim that no major Peninsular river originates there is factually wrong.
Key Takeaway:
The Western Ghats are a continuous mountain range with an elevation that increases from north to south. They serve as the primary source for major east-flowing Peninsular rivers and are significantly higher than the discontinuous Eastern Ghats.