Myntra.com — order delivered to wrong address

Address: Pune, Maharashtra, 411057

On 21st of June i placed an order from Myntra a mast and harbour blue chinos on 24 th of june i got a message that the order will be delivered today but i didn't received the order instead i got the message that the order was delivered. When i enquired about it on Myntra customer service they sent me a mail showing Proof of delivery (POD). The signature shown in that was not mine. Someone forged my signature and took my order. Please help me.