Districts are called for subdivision inside the States in India, every district maintained by government servants called Deputy Commissioner (DC), and there are several Government departments working for the Civilian of the districts. India is 7th largest Country in the World and Sub-divided in the States, and there are hundreds of districts in the different States of India.

The Following Largest Districts ranked by total Area (Official Measurements of Government of India).
Rank | District | State | Area(sq.km) | Area(sq.mile) |
---|---|---|---|---|
1 | Kachchh | Gujarat | 45,652 | 17626 |
2 | Leh | Jammu and Kashmir | 45,110 | 17417 |
3 | Jaisalmer | Rajasthan | 39,313 | 15179 |
4 | Bikaner | Rajasthan | 28,466 | 10991 |
5 | Barmer | Rajasthan | 28,393 | 10963 |
6 | Jodhpur | Rajasthan | 22,901 | 8842 |
7 | Anantapur | Andhra Pradesh | 19,130 | 7386 |
8 | Mahbubnagar | Andhra Pradesh | 18,432 | 7117 |
9 | Nagaur | Rajasthan | 17,686 | 6829 |
10 | Kurnool | Andhra Pradesh | 17,658 | 6818 |