The Asil or Aseel is a breed of chicken originating from South Punjab/ Sindh area of Pakistan and India. Similar fowl are found throughout Southeast Asia, such as Shamo and Thai game. The breed is generally unstandardised in South Asia and India, but popularity has increased in the western world in recent times with the breed standardised in the British, Australian and American standards.

This breed is mainly found in Mianwali district of Pakistan. However since its arrival, this breed has risen to popularity in Pakistan, currently the primary game breed used in the pits also preferred by gamblers. It is smaller compared to Sindhi aseels weighing between 1.5 to 3.5 kg depending on the preference of breeders. It is much faster and a better head hitter usually comes in small to medium height. A good Mianwali aseel should kill its opponent within a few minutes. They have been known to kill bigger roosters because of their speed and accuracy. They come in various colors such as Java(duckwing), Lakha (reddish), black and various others depending on the combination used in breeding. Very hard and a brave fighter with attitude to inspire, excellent in naked heels and metal spurs. There are many sub breeds of this breed owing to the combination used in breeding. A good tested Mianwali rooster would usually have offspring of a similar quality. Typical description would be small curved beak, strong joints, pearl/white/yellow eye color, short crow, small comb and do not have heavy body structure. May look smaller than other breeds but is excellent spurer.