For the residents of the capital the proliferating illegal and unauthorised construction is a menace impinging on their public space, but for the MCD they are "money spinners." If this alleged nexus of the MCD with the builder-politician-police chain facilitating these constructions is not halted in time, Delhi would soon turn into an "urban slum," contend town planners. "Blame it on the lack of enforcement by the civic authorities or the lack of alternatives available to the people who are forced to make these illegal yet need-based constructions. But, we have to make a distinction between the illegal and unauthorised constructions on the roads and in residential premises," said Prof. K.T. Ravindran, eminent architect and the head of the department of urban design at the School of Planning and Architecture.