Alwar is a city and administrative headquarters of Alwar District in the state of Rajasthan, India. It is located around 160 km south of Delhi, and about 150 km north of Jaipur, the capital of Rajasthan. Some parts of Alwar District come under NCR (National Capital Region).
India's highest ever recorded temperature of 50.6 °C (123.1 °F) was measured at Alwar on 10 May 1956.
Alwar was formerly the capital of the princely state of Alwar. It was formerly spelt as "Ulwar" in British India. This placed it in last position in alphabetically ordered lists, so a king changed the spelling to "Alwar" to bring it to the top