The main difference between eBAJA and mBAJA lies in the use of engine and electricity as power source.
eBAJA : Electric-BAJA
eBAJA is an intercollegiate design competition . Teams of students need to design and build electric powered atv that has Traction motor of 48V with fully automatic transmission having 10.83 Gear Ratios and 160 ah of battery pack.
mBAJA : Main BAJA
mBAJA is an intercollegiate design competition. Teams of students from universities all over India design and build small off-road cars. The cars all have engines of the same specifications. As of 2017 the engine has been an unmodified Briggs & Stratton Intek 20 single-cylinder with a displacement of 300cc and power output of approximately 10 bhp (7.5 kW).