Khalistan Liberation Force chief Harminder Singh 'Mintoo' who along with five others escaped from the high-security jail in Nabha on Sunday, has been arrested by the police, reports India Today.

Harminder Singh Mintoo is the chief of the banned outfit Khalistan Liberation Force (KLF).

Mintoo was arrested by Punjab Police from Delhi's IGI Airport in 2014. He was arrested in connection with 10 cases 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.

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The 49-year-old dreaded militant was part of the Wadhawa Singh-led Babbar Khalsa International till 2009, when he switched sides to lead its splinter group KLF.

Security agencies suspect that Mintoo had been receiving training and funds from Pakistan's ISI. He is also said to have good network in South East Asian countries including Cambodia, Laos, Myanmar and Thailand.