Kharku
Kharku (Punjabi: ਖਾੜਕੂ (Gurmukhi), کھاڑکو (Shahmukhi); khāṛakū, khaarakoo; literally meaning bold, feared, or domineering; alternatively spelt as Kharaku) is a Punjabi term used as a self-designation by Sikh militants of the Punjab insurgency who were followers of the Khalistan movement. They were also known as Uggravadi.