Explanation:

Tolkappiyam refers to the five-fold division of lands -  Kurinji (hilly tracks), Mullai (pastoral), Marudam (agricultural), Neydal (coastal) and Palai (desert). The people living in these five divisions had their respective chief occupations as well as gods for worship.

• Kurinji – chief deity was Murugan – chief occupation, hunting and honey collection.
• Mullai – chief deity Mayon (Vishnu) – chief occupation, cattle-rearing.
• Marudam – chief deity Indira – chief occupation, agriculture.
• Neydal – chief deity Varunan – chief occupation fishing and salt manufacturing.
• Palai – chief deity Korravai – chief occupation robbery.