Vadnagar is a town and municipality in the Mehsana district of the state of Gujarat in India. It is located 35 km (22 mi) from Mehsana. Its ancient names include Anartapura and Anandapura. It was a location visited by Xuanzang in 640 C.E. The founder and the first Director-General of the Archaeological Survey of India (ASI), Alexander Cunningham, had identified Anandapura with the town of Vadnagar. Vadnagar is also the birthplace of Narendra Modi, the current Prime Minister of India.

Mehsana district is one of the 33 districts of Gujarat state in western India. Mehsana city is the administrative headquarters of this district. The district has a population of over 1.8 million and an area of over 4,500 km2. There are over 600 villages in this district with a population of 2,035,064 of which 22.40% were urban as of 2011.