Hin: हनुमानगढ़ hanumānagaṛh
‘Hanuman Fort’ [Bhatner] – City/District, Rajasthan
From Hanuman and Hin: gaṛḥ, ‘(hill) fort’
Bhatner, the city’s previous name, came from the Bhati rajputs who ruled here [from Bhati and Skt: nagar→ner, ‘city’] and built the original fort and town in the 3rdC.
This fort fell to Sher Suri (a.k.a. Sher Khan), a cousin of the Sultan of Delhi, in the 13thC. Timur, the Turco-Mongol conqueror, captured it in 1391, He described it as one of the strongest and safest forts in the region. Despite that it constantly changed hands and twice came under the control of the Mughals
Finally in the year of 1805, it was captured by Surat Singh Rathore of Bikaner in the Battle of Hanumangarh and remained under the Maharajas of Bikaner until Independence. Victory was secured on a Tuesday (the day dedicated to the Hindu God Hanuman), so the fort was renamed Hanumangarh.
The fort is now 1,700 years old, making it one of the oldest surviving fortresses in India.