How many types of spy are mentioned in Kautilya’s Arthashastra?

Kautilya's Arthashastra is a book on -:

According to the ‘Arthashastra’ of Kautilya the following courts existed in the judicial system of Mauryan Age 1. Dharmamahamatra 2. Dharmasthiya 3. Rajjuka 4. Kantakshodhana

Which of the following South Kingdoms is not mentioned in the Ashokan inscriptions?

The division of Mauryan society into seven classes is particularly mentioned in -:

In Mauryan Administration, how many villages come under ‘Sangrahan’?