Har Yug Mein Aaega Ek Arjun - S01 E78 - ETF deals with KK's murder

Watch the Har Yug My Aaega Ek Arjun Season 1 Episode 78. The show was broadcast on May 19th, 2013 on the Star plus channel. ETF investigates the murder of KK. KK has been found dead. his wife Madhu is able to find Diwakar next to his body wearing an axe. Was Diwakar responsible for his murder? What was the reason KK keeping in contact to his former wife Shivani?