Explanation: Charter Act, 1853: It separated, for the first time, the legislative and executive functions of the Governor-General’s council.

• It provided for the addition of six new members called legislative councilors to the council.
• In other words, it established a separate Governor-General’s legislative council which came to be known as the Indian (Central) Legislative Council.
• This legislative wing of the council functioned as a mini Parliament, adopting the same procedures as the British Parliament.
• Thus, legislation, for the first time, was treated as a special function of the government, requiring special machinery and special process.

Source: Laxmikanth’s Polity