Recover accidentally deleted index without snapshot

I was trying to delete a particular record, but I have accidentally deleted the entire index(rnd_prod). Below is the code I used to delete.

DELETE /rnd_prod/
{
   "query": {

      "ids": {
         "type": "rnd_prod",
         "values": [
            "KXqye2AtRcCwSei7c_Wx_A"
            ]
      }

   }
}

I feel hopefull though because It seems elasticSearch doesnt physically delete the data immediately, until something called merging happens(reference).

Please help.. I donot have any backups/snapshots of this index..

You're out of luck here unfortunately.