New Delhi: 5 dreaded prisoners including chief of Khalistan Liberation Force (KLF), Harminder Singh Mintoo escaped from Punjab’s Nabha jail on Sunday with the help of five armed men. 
Here is all you need to know about KLF chief Harminder Singh Mintoo, whose escape has put the intelligence agencies on alert. 
— Harminder Singh Mintoo, was arrested from Delhi’s Indira Gandhi International airport in 2014 along with his aide Gurpreet Singh.
— Earlier, he was part of Wadhawa Singh-led Babbar Khalsa International. He joined Khalistan Liberation Force (KLF) in 2009 to revive the outfit.  
— Mintoo was a regular visitor of Pakistan. As per the reports, he had a backing of Pakistan’s ISI.
— He is wanted in several terror cases in Punjab including the 2008 attack on Sirsa-based Dera Sacha Sauda chief Gurmeet Ram Rahim Singh and recovery of explosives at Halwara Air Force station in 2010. 
— Mintoo is also wanted in a case of plotting three Shiv Sena leaders in Punjab.