Ignore that. This is the newest RFI document link. The links in the link did not work for me.
https://indianarmy.nic.in/Site/FormTemplete/RFIView.aspx?MnId=9mPYgYfw47wHCtu4e9lhCw==
Ok, I think I can make a reasonable guess here.
The Defence Procurement Policy was defined in the year 2011. This RFI might as well be new. It is just that the new RFI will follow the same Defence Procurement Policy defined in 2011.