In Behind the Beautiful Forevers: Life, Death and Hope in a Mumbai Undercity by Katherine Boo , what language does she use in her opening report on the setting?

In Behind the Beautiful Forevers: Life, Death and Hope in a Mumbai Undercity by Katherine Boo , what language does she use in her opening report on the setting?
In Behind the Beautiful Forevers: Life, Death and Hope in a Mumbai Undercity by Katherine Boo , what language does she use in her opening report on the setting?

 
In Behind the Beautiful Forevers: Life, Death and Hope in a Mumbai Undercity by Katherine Boo , what language does she use in her opening report on the setting?