Ahmedabad Population 2017. Ahmedabad is the largest city in the Indian state of Gujarat. It was formerly the capital of Gujarat, and is still the judicial capital since the Gujarat High Court is located there. The estimated population of Ahmedabad in 2016 is over 7 million people in the city and approximately 8 million in the urban agglomeration. This makes Ahmedabad the fifth largest city in India and the seventh largest metropolitan area. Forbes magazine ranked Ahmedabad as the third fastest growing city of the decade.