Kammala wannan jumlar: A cikin 1921 <unk> 22, an sake yin babban tsari a cikin Sojojin Indiya na Burtaniya wanda ya haifar da kafa manyan ƙungiyoyin sojoji na rukuni huɗu zuwa shida. Daga cikin waɗannan akwai Rundunar Punjab ta 15, wacce aka kafa ta hanyar haɗa Punjabis na 27 tare da Punjabis na 25, 26, 28 da 29. Sabon sunan bataliya shine 3rd Battalion 15th Punjab Regiment. A lokacin Yaƙin Duniya na Biyu, rundunar ta yi aiki a Somaliland ta Biritaniya, Aden, Farisa, Iraki, Siriya da Italiya. An canza shi zuwa Battalion-Machine-Gun Battalion a cikin 1946. A cikin 1947, an ba da Rundunar Punjab ta 15 ga Sojojin Pakistan. A shekara ta 1956, an hade shi da 1st, 14th da 16th Punjab Regiments don samar da babban Punjab Regiment, kuma 3/15th Punjab an sake sanya shi a matsayin 11 Punjab. A lokacin Yakin Indo-Pakistan na 1965, an tura shi a Yankin Sylhet na Gabashin Pakistan, yayin da a
1971, ya yi aiki a cikin Shakargarh Sector.