The Income Tax Department (also referred to as IT Department; abbreviated as ITD) is a government agency undertaking direct tax collection of the government of India. It functions under the Department of Revenue of the Ministry of Finance. The Income Tax Department is headed by the apex body Central Board of Direct Taxes (CBDT). The main responsibility of the Income Tax Department is to enforce various direct tax laws, most important among these being the Income-tax Act, 1961, to collect revenue for the government of India