From the Wikipedia page 
A Zilā or Zilla or Zillah or Jela (Urdu: ضِلع, Hindi: ज़िला, Bengali: জেলা ) is a country *subdivision in Bangladesh, India, and Pakistan. It is translated as district.
- districts of Pakistan (Zila, below division)
- districts of India (Zila, below states)
- districts of Bangladesh (Zila, below division)