Cgt on army service benefit plot

Cgt on property?

Allocated to me as army officer service benefit

Dha 9 lahore

Deposited registration fee, and 3 x instalments only = total 167000/-

Initial allocation = 2012
Specific allocation= may 2015
Date sold off= may 2017

Sale consideration= 12000000/-

No adv tax deducted by dha from me as a seller


Question: is it exempted being service benefit plot?

@Falcon please answer