Paying attention to Arundhati Roy's style, show how she presents characters and suggests the wider concerns of the novel.

This needs a pretty detailed answer. My suggestion is that you check out the GradeSaver "analysis" of chapter 7/8. Just scroll down to the analysis that is located just after Chapter 9 at the link below,

http://www.gradesaver.com/the-god-of-small-things/study-guide/section3/