Manjo Janar Idris Garba ya kasance Gwamnan Soja na Jihar Benuwe daga shekara ta 1987 zuwa shekara ta alif 1988 da kuma Gwamnan Jihar Kano daga shekara ta alif 1989 zuwa shekara ta 1992. Idris Garba an haife shi ne a watan Yuli na shekara ta 1947 agarin Gulu, Nigeria, Lapai karamar (karamar Hukuma) a Jihar Niger . Yayi karatun sakandare a makarantar Sojan Najeriya, Zaria daga shekara ta 1963 zuwa ta 1967. Ya shiga Kwalejin Tsaro ta Najeriya, Kaduna, kuma an ayyana shi a matsayin laftanal na biyu a shekara ta 1968. Ya halarci kwasa-kwasai da dama kamar yadda yake a jerin layuka masu zuwa kamar haka: Artillery Troop Commanders Course USSR, July 1970 - September 1971 Young Officers Course Nowshera, Pakistan, July - December, 1972 Technical Gunnery Course Larkhill, Salisbury, UK, May - August, 1975. Field Artillery Officers Advanced Course, Forstill, Oklahoma, USA June 1977 to February 1978; Command and Staff College, Jaji August 1978 to September, 1979 Regiment Battalion Commanders Course, Nigerian Army School of Infantry, Jaji in 1981.