A meeting of the Delhi cabinet is likely to discuss the issue tomorrow as Centre has already given clearence to the proposal, officials said.
The Government in September had regularised 895 such settlements, which are home to around 35 lakh people.
"The government is likely to announce a roadmap for development of all unauthorised colonies," the officials said.
The government has already asked all the three municipal corporations to take the help of professional architects in making the layout plans for the colonies which were already regularised.
It had issued provisional regularisation certificates to over 1,639 unauthorised colonies ahead of assembly polls in 2008. The then Dikshit government, while distributing the certificates, had promised to regularise the colonies if Congress came to power for the third term.
After the Congress' defeat in municipal polls in April, Dikshit had asked all concerned departments to expedite the regularisation process.
