  We explore a realistic supersymmetric SU(2)_L \times SU(2)_R \times U(1)_B-L
model spontaneously broken at around 10^12 GeV. The presence of D and F-flat
directions gives rise to TeV mass doubly charged particles which can be found
at the LHC. We implement TeV scale leptogenesis and employing both type I and
II seesaw, the three light neutrinos are partially degenerate with masses in
the 0.02-0.1 eV range. The effective mass parameter for neutrinoless double
beta decay is 0.03-0.05 eV. We also find the interesting relation tan 2
\theta_13 ~ [\Delta m^2_{\odot} / \Delta m^2_{atm}] [sin 2 \theta_12 /tan 2
\theta_23] <~ 0.02.
