New Delhi Municipal Council is a nominated body controlled by the Ministry of Home Affairs[central govt],the three other corporations are the elected bodies & DCB is controlled by the Ministry of Defence[central govt].
Delhi Development Authority[DDA] is under the Ministry of Urban Affairs[central govt] & DJB is under Delhi Government]
Then, there is Delhi Police which has traffic wing,too. This is under central government
All these organisations have been entrusted with very important & heavy responsibilties to provide various civic facilities in an EFFICIENT, FAIR & POLITE manner to all the citizens, without any let & discrimination at all times & be equipped at all times, to carry out their responsibilities to the satisfaction of the citizens.
Vijay K. Saluja
Giraffe Heroes India