Jammu and Kashmir Rifles is

Jammu and Kashmir Rifles is

an infantry regiment of the Indian Army
a battalion of the Rashtriya Rifles
the name of the Armed Police of the State of Jammu and Kashmir
a paramilitary force under the Ministry of Home Affairs
This question was previously asked in
UPSC CDS-2 – 2016
The correct answer is A, as Jammu and Kashmir Rifles is an infantry regiment of the Indian Army.
Jammu and Kashmir Rifles (JAK RIF) is a distinguished infantry regiment of the Indian Army. It originated as the state forces of the Princely State of Jammu and Kashmir and was integrated into the Indian Army after the state’s accession in 1948.
Rashtriya Rifles (RR) is a counter-insurgency force formed by taking soldiers on deputation from various infantry regiments of the Indian Army, including the JAK RIF, but JAK RIF itself is a parent regiment, not a battalion of RR. Armed Police forces are state-level organizations, and paramilitary forces (like CRPF, BSF, etc.) function under the Ministry of Home Affairs.