India Post — delay of registry

Address: Karimganj, Assam, 788712

Sir
I have book somen items through by registry date 14 nov 2017 karimganj assam -788712 to pandhurna distt chhindwara madhya pradesh - 4480334 no. Rs[protected]in but my items not reach to particular station and there last location guwahati rms (Ccr) it show on date 15 nov 2017.
Sir i have complaint this regard on date 23 nov 2017 but no any answer there side complaint no. [protected]
Sir please slow my problem.