I'm going to India in september?

In Delhi, you can shop in cannaught place, sarojini nagar market, lajpat market, karol bagh. There are number of other malls as well. For sightseeing, you can visit Akshardham temple, Rajghat, Indiagate. Delhi also has a lot of dairy products. Mother dairy is there so you can get milk, ice creams, curds....from there