India Post — fake mobile parcel

Address: 635802

I received a call from this no. [protected], [protected], [protected] on 23 of oct 2017. She told me that you are one of the lucky customers using airtel sim and you got a offer to get samsung j7 mobile in just 3000/- rupees.
(Actual price-14500/-). We will parcel this mobile in your nearest post office in 10-15 days. Then she asked my address and said we will inform you when we dispatch it. On 25th of oct, she made a call again, that your parcel has been arrived at the post office. She sent the parcel code also through mobile sms. I went there in post office and asked for that parcel, but they said you can not take that parcel right now as the data has not come. Then again that fraud girl talked to me and said data has come you can take your parcel. Then i went there in post office and took that parcel after paying 3000/- rupees of amount. But when i opened that parcel, instead of samsung j7 mobile, i found there was no mobile phone. I felt disappoint. I went back to the post office to tell about this fraud and asked for the further action i have to take. Then they suggest me about the consumer forum. I hope you help me to get my amount back. Thank you.