Officials today said agencies like PWD and DSIIDC will carry out the surveys following which developmental works will be started in the colonies.
The government has already prepared CDs containing maps, boundaries and all relavent information relating to each of the 895 colonies.
The CDs have been distributed to concerned MPs, MLAs and Resident Welfare Association seeking their support in carrying out development works in the settlements.
The government plans to spend Rs 200 crore initially for carrying out development works in the colonies.
Officials said the basic purpose of preparing the CDs is to ensure better coordination among all concerned parties in carrying out the developmental works.
Out of 895 colonies which were regularised last month, 312 settlements are on private land while 583 colonies came up on government land.
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The Government is also in the process of allowing sale and purchase of properties in the colonies on private land.
Allowing sale and purchase will bring relief to lakhs of residents as government had restricted sale and purchase in the settlements after issuance of provisional regularisation certificates in 2008.
Delhi Government 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.