India Post — My article not yet delivered

Address: 603103

Dear sir,
I have booked a registered post, having tracking number rt[protected]in at kelambakkam (chennai) post office on 26th september 2016., to icai bhawan (pb no. 7112) at indraprasthan marg, new delhi. but so for my article is not delivered at pb no.7112.
Kindly update the delivery status of my article (rt[protected]in)

Thanks & regards
Raviprakash m
+[protected]