Vadnagar is a city and a municipality in Mehsana district in the Indian state of Gujarat. It is the birthplace of Narendra Modi, the 15th and current Prime Minister of India.
Vadnagar is located at 23°47′N 72°38′E / 23.78°N 72.63°E / 23.78; 72.63. It has an average elevation of 143 metres (469 feet).
Vadnagar is located South of Vadnagar Kheralu Telgah. To the West Unjha telgah, South- Visnagar and Vijapur telgah and on East side Sabarkantha Districts are located.
As of 2001 India census, Vadnagar had a population of 25,041. Males constitute 51% of the population and females 49%. Vadnagar has an average literacy rate of 65%, higher than the national average of 59.5%: male literacy is 75%, and female literacy is 54%. In Vadnagar, 13% of the population is under 6 years of age.
Known history of Vadnagar goes back to more than 2500 years. Vadnagar is referred to as Anartapur in Mahabharata. According to the great epic the Anarta warriors fought in the Mahabharata war on both the sides and the feud among them continued even after the war was over. Recent archaeological excavations have established the existence of a thriving city of religious and cultural activities at the location around the 1st century.