Correct Answer: (a) Paragana - Sarkar - Suba
Note: With reference to medieval India, entire empire was divded into Suba (province). 'Subedar' was head of administration of Suba. For better administration, every Suba was divided into smaller units called Sarkar whose head was 'Fauzdar'. Every Sarkar was further divided into 'Pargana' or 'Mahal'. Shiqdar was head of this unit. There were villages under Pargana which were called 'Mavada' or 'Decha'. 'Nagla' were small colonies under Mavada. During the reign of Shahjahan another unit was formed between Pargana and Sarkar called 'Chakla' under which few Pargana came. Hence with reference to medieval India, the correct sequence in ascending order in terms of size is-Pargana-Sarkar-Suba.