According to Delhi Police, the group was backed by ISI for narcoterrorism.
According to the information available, two of the five arrested men are from Punjab. The remaining three are from Kashmir.

Five persons apprehended following an exchange of fire in Shakarpur area of Delhi. Two of them are from Punjab, three are from Kashmir.
Weapons and other incriminating materials recovered: DCP Special Cell Pramod Kushwaha .
The group was backed by ISI for Narcoterrorism. The name of the terror organisation is yet to be confirmed: Delhi Police.
Nationality of terrorist is important with media reports circulating. Turkey Erodgan deploying Syrian terrorist to India monthly consideration for $ 2000.May be ISI-Turkey