Ahmedabad or Ahmadabad is the largest city in Gujarat and the sixth largest city in India with a population of almost 5 million. The city is also sometimes called Karnavati , an older name and as Amdavad in colloquial Gujarati . Ahmedabad is the administrative center of Ahmedabad District , and was the former capital of Gujarat State from 1960 to 1970 , when Gandhinagar replaced it.

The city was founded in the 15th century by Sultan Ahmed Shah on the Sabarmati river , and served as capital of the Sultanate of Gujarat. The historic center of Ahmedabad is presently a thriving business district.