Punjab DGP was quoted as saying by PTI as saying, "KLF chief Mintoo was in touch with terror groups in Pakistan."
Mintoo was nabbed from Nizamuddin railway station in Delhi on Monday.
The militant outfit leader was arrested late last night from Nizamuddin railway station, Arvind Deep, special commissioner of police, Special Cell, said today.
"Punjab Police had suspicion about his movement towards Delhi and they contacted Delhi Police. Following intensive checking and tracking, he was arrested from the railway station last night," said the officer.
UP police last evening arrested the alleged "mastermind" of the daring daylight jailbreak, Parminder Singh.
He was arrested from Kairana in Uttar Pradesh's Shamli district when the getaway vehicle - a Toyota Fortuner - was stopped at a police picket.
Mintoo yesterday escaped along with five other prisoners in a sensational jailbreak after armed men in police uniform tricked the sentries into opening the gates of the jail in Patiala, nearly 200 km from here, and bolted out with the inmates while firing a hail of bullets.
Mintoo was arrested by Punjab Police after he was deported from Thailand in November 2014. He was wanted in ten terror cases.
The KLF chief was brought to India along with his key aide Gurpeet Singh 'Gopi' after Punjab Police, in coordination with central agencies, traced them in Thailand, a senior police official said.
(With Agency inputs)