Ahmedabad Experience: It is one of the ancient city. To reach there is not a tough job. You can access by Bus, train and by Air also.
Food, sight-seeing and shopping: With some historical places around just like, iskon, jamma masjid, akshardham temple gandhinagar, puri temple, kankaria lake, zoo and food is good. To travel local transport like Auto, Bus and private vehicle around the city is affordable. Science city, Sabarmati Ashram is one of the best. Can do shopping.
Activities & things to do: Visit different places. More shopping, do fun.
Travel tips, How to reach, travel warnings etc: Do not go in summer. Its quite hot during daytime.