The longest continuous wall in India, often called the 'Great Wall of India', is at:

The wall of Kumbhalgarh Fort, in the Rajsamand district of Rajasthan, is the longest continuous wall in India. It is about 36 km long and is often called the "Great Wall of India".

About the wall:

• It is often described as the second-longest continuous wall in the world, after the Great Wall of China.
• It is wide enough in places for several horses to ride side by side (up to about 15 feet wide).
• It winds over the hills and valleys of the Aravalli Range.

About Kumbhalgarh Fort:

• It was built in the 15th century (mainly between about 1443 and 1458) by Rana Kumbha of Mewar, who built many forts in his kingdom.
• Its architect is believed to have been Mandan.
• It stands on a hilltop about 1,100 metres above sea level.
• It contains more than 300 temples, both Hindu and Jain.
• It is the birthplace of Maharana Pratap (1540), the famous Mewar ruler who fought the Mughals at the Battle of Haldighati (1576).
• It was a refuge for the rulers of Mewar in times of danger; the young prince Udai Singh was hidden here after the murder of his father.
• It was captured only once, briefly, by the combined Mughal and other armies in the 16th century, reportedly because of a shortage of water.
• Badal Mahal ("Palace of Clouds") is at the top of the fort.
• Kumbhalgarh is part of the "Hill Forts of Rajasthan", a UNESCO World Heritage Site (2013), along with Chittorgarh, Ranthambore, Gagron, Amber and Jaisalmer forts.
• The fort is surrounded by the Kumbhalgarh Wildlife Sanctuary.

Other famous forts:

• Chittorgarh Fort: one of India's largest forts; has the Vijay Stambh.
• Gwalior Fort: called the "Gibraltar of India"; has the Man Mandir palace.
• Golconda Fort: Hyderabad; famous for its acoustics and diamond trade.
• Mehrangarh Fort: Jodhpur.

Why not the other options?

• ✗Chittorgarh Fort has the Vijay Stambh and Kirti Stambh.
• ✗Gwalior Fort is called the "Gibraltar of India".
• ✗Golconda Fort is famous for its acoustics.