Yeah, Delhi Police, the National Capital Territory, is under Ministry of Home Affairs (MHA), Government of India and not under the Government of Delhi.

The Delhi Police is the main law and order agency for the National Capital Territory of Delhi (NCT).

It does not have jurisdiction over the adjoining areas of the National Capital Region.

Delhi Police, in 2017, has 6 Ranges, 13 Police Districts, 62 Sub-Divisions with 184 Police Stations and 5 Specialised Crime Units declared as Police Stations namely, Economic Offenses Wing, Crime Branch, Special Cell, Special Police Unit for Women and Children (SPUWAC) and Vigilance)

The hierarchy in Delhi Police DP is as follows.

Commissioner of Police (CP)
Special Commissioner of Police (Special CP)
Joint Commissioner of Police (Joint CP)
Additional Commissioner of Police (Additional CP)
Deputy Commissioner of Police {Selection Grade} (DCP)
Deputy Commissioner of Police {Junior Administrative Grade} (DCP)
Additional Deputy Commissioner of Police (Additional DCP)
Assistant Commissioner of Police (Assistant CP or ACP)
Inspector
Sub Inspector
Assistant Sub Inspector
Head Constable
Constable

The Delhi Police undertakes the following activities:

Investigating crimes
Controlling criminal activities
Protection of women
Control traffic problem

Help lines-

Delhi Police has Helpline numbers through which people can seek help without going to the police station in person.

The various Helpline numbers of Delhi Police are as follows;

Police Control Room- 100
Senior Citizens Security Cell- 1291
Traffic problems- 1095
Women helpline- 1091
Anti-Obscene Calls Cell and Anti-stalking Cell - 1091
Terrorism - 1090
NORTH-EAST (People from North East India) HELPLINE – 1093