Lohagarh Fort was built in the early 18th century by the Bharatpur Jat ruler King Suraj Mal. It is also known as Iron Fort wherein it withstood repeated efforts by the British to defeat it. Some other monuments like Kishori and Moti Mahal and Kothi Khas are also located in this fort. Additionally, there is an amusing garden in the fort that portrays artistic and aesthetic nature of the rulers.
Lohagarh fort or the Iron fort took its name from its supposedly impregnable defences which are believed to be motivated by a description given in the epic, Ramayana.
The fort was enclosed and defended by deep moats, and as per the legend of ancient time would fall "only when a crocodile swalled up all the water of the moat".
It has a large gate of the Lohagarh that kept an interesting history behind it. Originally, it was belonged to the fort of Chittorgarh but was carried away by Sultan Alauddin Khilji of Delhi.
Victorious Jat armies have carried back it in triumph from the imperial capital of Delhi to Bharatpur.