does means of livelihood mean basic or minimum income or any income whether small or big

The term "means of livelihood" refers to the method or way a person uses to secure the necessities of life, such as food, shelter, clothing, etc. This could be through a job, a business, or any other income-generating activity. It does not necessarily refer to a basic or minimum income, nor does it specify the amount of income, whether small or big. It simply refers to the source of income or the way a person makes a living.