Detailed Explanation:

Answer: Option 1 — Ajanta Caves lie in the gorge of Waghora river.

The Ajanta Caves, a UNESCO World Heritage Site comprising 29 rock-cut Buddhist cave monuments, are located in the Aurangabad district of Maharashtra in the horseshoe-shaped gorge of the Waghora River. Let us evaluate each statement:

✅ Statement 1 – Correct: Ajanta Caves are indeed situated in the gorge of the Waghora River in Maharashtra.

❌ Statement 2 – Incorrect: Sanchi Stupa is located on a hilltop near the Betwa River in Raisen District, Madhya Pradesh, not near the Chambal River.

❌ Statement 3 – Incorrect: Pandu-lena Caves (Nasik Caves) are carved into the Trirashmi hills near Nashik, Maharashtra, not in the gorge of the Narmada River.

❌ Statement 4 – Incorrect: Amaravati Stupa is located on the banks of the Krishna River in Guntur district, Andhra Pradesh, not the Godavari River.

📝 Short Notes: Major Buddhist Monuments and Their Locations