NEW DELHI: Central and New Delhi districts have been put under a multi-layer security blanket after a specific terror input received by intelligence agencies that two Khalistani terrorists are headed towards Delhi in an explosive-laden car with an Uttar Pradesh registration number to attack Parliament House.Sources said that the terrorists — Lakhwinder Singh and Parminder Singh — are travelling from the Nepal border in a white Innova (UP26 AR 24**). The input suggests the men are in their late 40s and trained in assembling IEDs .The input has been given the highest priority because it has come from two sources. Apart from the agency, an anonymous caller shared an almost similar tip with Delhi Police. The informer identified himself as one Iqbal calling from the number 75349071**, an officer in New Delhi district confirmed. The number was tracked to Udham Singh Nagar in Uttarakhand. A team has been sent there to verify details. The alert has come at a time when agencies had alerted that a stolen car or a government vehicle could be used by terrorists as vehicle-borne IED in the run-up to I-Day celebrations. Officials said the two names mentioned by the informer are similar to two suspects wanted in the November 2016 Nabha jailbreak of Punjab.“The people named are close associates of Nabha jail escapee and self-styled chief of Khalistan Liberation Force, Harminer Singh Mintoo, who died of cardiac arrest in April. He had the backing of Pak spy agency ISI and had been motivating youths to join terrorism. A man named Lakhwinder was also the close associate of the slain gangster and another Nabha escapee Vicky Gounder. We are verifying if these men are the same ones,” a security official said.Khalistani terrorists not only in India, but in countries like Italy, Australia, UK and Germany have been accused of hatching plots to carry out strikes in Punjab and other parts of the country, apart from planning killings of BJP and RSS leaders.“British national Jagtar Singh Johal had planned to kill RSS leader Ravinder Gosain and several others after he met Mintoo in France in 2013. Others like Harmeet Singh alias PhD (based in Lahore), Gurjinder Singh (Italy), Gurjant Singh (Australia) are also involved in anti-India activities,” an intelligence official said.