The Delhi government spent over Rs.3,000 crore but has failed to provide basic facilities like roads and sewer and water lines in the city's unauthorised colonies, the CAG said.
"The urban development department, Government of the National Capital Territory of Delhi, has failed to provide basic services like sewer lines, water lines, roads and drainage to all the 895 unauthorised colonies despite incurring an expenditure of Rs.3,029.21 crore up to March 2013," said a Comptroller and Auditor General (CAG) report, tabled in parliament Friday.
Under the chief ministership of Congress leader Sheila Dikshit, the Delhi government in 2012 regularised 895 unauthorised colonies in the capital.
The three-time chief minister had listed these colonies as one of her government's achievements before being ousted in the 2013 assembly elections.
The CAG also said that during the Congress-led United Progressive Alliance regime at the centre, the ministry of urban development "made certain changes" in the guidelines approved by the union cabinet to regularise Delhi's unauthorised colonies.
The auditor also questioned the Dikshit government's decision of giving provisional certificates to these unauthorised settlements.
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"Issue of provisional regularisation certificates was not envisaged in the guidelines."
In the run-up to the 2008 assembly polls, Dikshit had issued provisional regularisation certificates to over 1,200 unauthorised colonies and had announced that some 1,600 colonies would be regularised.
The CAG also pointed out "several discrepancies" in determining the outer boundaries of these colonies.