Kammala jumla mai zuwa: An haifi Joginder Jaswant Singh a ranar 17 ga Satumba 1945 a Samma Satta a Punjab, ɗan fari na Laftanar Kanar Jaswant Singh Marwah (b. 1921) da matarsa Jaspal Kaur (1923<unk>2006). Sama Satta a lokacin gari ne a cikin masarautar Bahawalpur, yanzu wani ɓangare na Pakistan. Iyalinsa sun fito ne daga garin Daultala, yanzu kuma a Pakistan, Gundumar Rawalpindi. Shi soja ne na ƙarni na uku; kakan mahaifinsa Sepoy (Private) Atma Singh Marwah (1896-1968) ya yi rajista a cikin Rundunar Punjab ta 1/67 na Sojojin Indiyawan Indiya a matsayin mai buga ƙaho a shekara ta 1914, kuma ya yi yaƙi a
Siege na Kut a cikin Yaƙin Mesopotamian a lokacin Yaƙin Duniya na Farko. An ji rauni a cinyarsa ta dama da hannunsa da wuri, an kwashe shi kuma aka tura shi don murmurewa a kudancin Faransa, bayan haka aka sallame shi daga soja a shekara ta 1918. Mahaifin Joginder, Jaswant, tsohon soja ne na Yaƙin Duniya na Biyu wanda ya wuce daga Kwalejin Sojojin Indiya a watan Afrilu 1943 kuma aka ba shi izinin shiga Rundunar Sojojin Indiya ta Royal. A cikin 1943, an tura shi zuwa Depot Supply Depot a Karachi, kuma ya auri matarsa Jaspal Kaur a watan Disamba na 1944. A watan Fabrairun 1945, an tura shi zuwa Sama Satta kuma an ba shi umurnin wani matattarar mai; An haifi Joginder a watan Satumba. Bayan 'yanci da Raba a watan Agusta 1947, dangin sun yi hijira zuwa Patiala a Indiya. A cikin 1948, an canza Jaswant zuwa Rundunar Sojojin Indiya na Injiniyoyin Wutar Lantarki da Injiniya a matsayin Kyaftin.