Pranam! I am looking for above mentioned book named as Mrtyunjaya Tantra which is mentioned by Srila Jiva Goswami in his Krishna Sandarba and also mentioned by many scholars somewhere. It is one of the Vaishnava Tantra book and it contains the description of Spiritual World. I have contacted many libraries but I haven't found it yet. If someone can get this book then it would be great help for me and for society.