Phantom Indrajal Comics: Blood Soaked Diamond

This story  started during the lifetime of 20th Phantom who captured decoits who stole the valuable Kimberly diamond and took shelter in the Jungle hospital . Although 20th Phantom captured them in the hospital but he could not found the diamonds. Most of the decoits captured and hanged but young one was sentenced prison for 20 years.

During 20 years 20th Phantom died and 21th present phantom take charge. Young decoit who become older now and release from prison and now want to take revenge from the  Phantom. He the mistakenly attacked with his gun to present Phantom, and failed. Present Phantom then Capture the Decoit and asked him about the stolen Diamond. 

Incidently during this time another two people with heavily armed attack and capture Phantom and the decoit. Who are those two people? and how  present phantom found out the stolen diamonds? 

You have to read the full graphic story of Phantom to answer these questions.