Hindu Punjabi

I hear and read this stuff all the time about how sikh, jat, gujjar, baloch, pathan, maratha, rajput, dogra etc etc were classified as martial races by the British...certain people were more suitable to serve in the Queen's (British) army as soldiers. I recently found this on the British Battles website: "The Indian regiments that invaded Afghanistan in 1878.......were predominantly recruited from the “martial” races: Jats, Sikhs, Muslim and Hindu Punjabis, Pathans, Baluchis and Gurkhas."
Notice the "Hindu Punjabis"?? This just brings me to something. A lot of people feel that Sikhs are the original ethnic inhabitants of the Indian Punjab and thus the "real" Punjabis and Hindus are basically outsiders and ethnically not Punjabi.
This is what i've got to say about that. In brief, Persians used the word "Hindu" for "Sindhu", referring to the people who lived near or on the other side of the Sindhu River as "Hindus", and their religion later became known as "Hinduism." Prior to that time, Hindus had called their religion Sanātana Dharma.

Thus, Sikhs are basically those people who came under the influence of the ten Sikh Gurus from 1469 to 1708 AD and chose to adopt the way of life as preached by the Gurus. They are ethnically, no different from any of the other tribes/ethnic groups/communities in the Punjab. Though the way of life that has been followed by the Sikhs for hundreds of years has resulted in them being a very distinct community and has given them quite a unique identity, this in no way means that Sikhs are the only ethnic Punjabi's.
Even though the term "Ethnic Punjabi" is debatable and is out of context here...