Essar Energy became a shareholder in Kenya Petroleum Refineries in July 2009
Group expects debt to come down by half with Rosneft deal
Lawyer Suren Uppal alleges that Essar Group ordered its former security chief Albasit Khan to tap into its business rivals' telephone conversations
Tapping said to have taken place between 2001 and 2006 and also mentions conversations involving PMO officials from Vajpayee regime