As the customs clearance facilities available at these Post offices only.
Generally ,parcels send from USA, first comes to Delhi,then ,they are sorted out and despatched to your nearest foreign Post office as per address given on the parcel.
The parcels originating from Gulf countries comes toMumbai.Similarly,at
Chennai,the foreign parcel are directly coming from Singapore,Sri Lanka,Malaysia,HongKong. Lastly, The parcels despatched from China,Thailand,Japan,Korea and Philippines comes to Kolkatta.
This is just to give an idea, how the parcels are travelled within India and they are examined by customs authority at your nearest Foreign or sub-Foreign Post Office. You should enquire any matter related to Customs clearance at these nearest Post offices.However,exact movement of parcel can be ascertained from the Postal Authority only
source----
http://personalimport.blogspot.com/2007 ... el-in.html
I hope it is usefull for our ifg team members


cheers
sankar