Which one among the following Departments/Authorities is not under the

Which one among the following Departments/Authorities is not under the Ministry of Home Affairs?

The Department of States
The Department of Official Language
The National Authority Chemical Weapons Convention
The Department of Jammu, Kashmir and Ladakh Affairs
This question was previously asked in
UPSC CDS-1 – 2023
The National Authority Chemical Weapons Convention (NACWC) is not under the Ministry of Home Affairs.
The NACWC is the nodal body in India for the Chemical Weapons Convention and functions under the Cabinet Secretariat.
The Ministry of Home Affairs (MHA) is responsible for internal security, border management, Centre-State relations, Administration of Union Territories, Official Language, etc. The Department of States, the Department of Official Language, and the Department of Jammu, Kashmir and Ladakh Affairs are all under the MHA.