Indian Army — olx indian army fraud

I have seen the ad of iphone X which is of 43, 000 i start to chat then he gave me the no. To call on his i called then i asked for the lowest price all that stuff happen.
Then suddenly he was an army officer he send me his all document which make me belive him and he will courier the item to which i have pay in advance i refuse then he say atleast the courier charge which i agree rs 1500 then he gave me the msgs i got the msg till that everything is fine I thought i will get the parcel and rest amt after checking the device.
Then again the new issue arises i called the courier boy he said this is the army parcel he need the permission which he will get from his office after the army confirmation.
Then i called him i asked him about all this stuff and he says yes i have to confirm then he will deliver u the parcel then i asking him to confirm it which he refuse and asking me for the full amt which i refuse then he says half amt and u will receive your parcel and after your checking pay the rest of the amt which again i refuse. Then i said confirm it or take your parcel back and refund my money. He says wait atleast 5000 i said u will confirm it then he says yes. I agree to pay 4000 which he agrees and he says i will confirm it.
In total i paid 5500
They uses 2 mobile number one for payment and one for call.
In my case their numbers.
Paytm-[protected]
Call -[protected]
Aware of them they uses army name and their fake id's
I will attach their documents and others stuffs and i given u their number aware of this numbers
As a student it hurts the most when your hard earn saved money stolen from you.
Hope our indian police and indian army will solve the problem as soon as possible.