Apple India — Duplicate product

Address: 560035

My order no 13072916
This is Prayas Nayak I ordered Iphone 4s from Apple Company but i have received from some local company even i have checked with Authorized apple store they confirmed its a duplicate phone.
what is the solution...?
kindly let me know replacement / refund process
it will be grateful if someone contact me from your end
my Mobile number [protected]