New Delhi, April 5 (IANS): The Bharatiya Janata party on Tuesday hit back at Delhi Chief Minister Arvind Kejriwal for his criticism of the NDA government for allowing a Pakistani team to probe the Pathankot airbase attack, saying his remarks exposed his "lack of knowledge".

Senior BJP leader M.J. Akbar told IANS: "Kejriwal has exposed his own lack of knowledge, his own ignorance of the nuances of foreign policy and relationships with a neighbour with whom we have a complex history."

The Aam Aadmi Party (AAP) chief in a series of tweets in Hindi on Tuesday wrote: "Even though BJP/RSS chants 'Bharat Mata ki Jai,' but by inviting ISI to India they have stabbed Mother India in the back." 

The government allowed a Joint Investigation Team (JIT) from Pakistan, including an ISI (Inter-Services Intelligence) official, to visit India last month to probe the terrorist attack in January on Pathankot airbase in Punjab. 

The JIT has concluded, according to media reports in Pakistan, that the Pathankot attack was staged by India to spread "vicious propaganda" against Pakistan. 

"It is very shameful. It is for the first time that any Prime Minister has insulted the country before Pakistan," Kejriwal said in another tweet. 

The Aam Aadmi Party (AAP) has been protesting Pakistan JIT's role in the investigation on the ground that the ISI, a state actor, has long been the instigator of terrorism in India.