  The true coincidence summing (TCS) correction factor for a Broad Energy
Germanium (BEGe) detector has been calculated at far and close geometry
measurement using multi-energetic radioactive $\gamma$-ray sources $^{60}$Co,
$^{133}$Ba and $^{152}$Eu. The correction factors were calculated using
experimental method and analytical method. Photopeak efficiency and total
efficiency required to calculate the correction factor were obtained using
Geant4 Monte Carlo simulation code. A few standard as well as fabricated
mono-energetic sources were also included in the $\gamma$-ray efficiency
measurements. The simulated efficiencies of mono-energetic $\gamma$-ray sources
were matched to experimental $\gamma$-ray efficiencies by optimizing the
detector parameters. The same parameters were used to obtain the photopeak and
total efficiency for $\gamma$-ray of our interest and coincident $\gamma$-ray.
Analytical correction factors and experimental correction factors were found in
good agreement with each other.
