The official said Sukhvinder's brother Satpal possibly transferred Rs 2.50 lakh from Canada to his cousin Jitu Singh alias Jita in Gwalior to facilitate the November 7 killing.
The home ministry has taken cognisance of the "serious security lapse" and has sought a detailed report from the state government. The State Government has also been asked to fix responsibility for this lapse and take strict action.
As per a senior NIA official, the anti-terror agency has "nominated Inspector General of Police Santosh Rastogi to assist the Registrar General of Punjab and Haryana High Court to secure and seize the records related to the visit of Prime Minister to Punjab on January 5, 2022, from State and Central Agencies".
Punjab's Deputy Chief Minister Sukhjinder Singh Randhawa has said a probe would be carried out to ascertain whether Aroosa Alam, a Pakistani journalist who has been visiting former chief minister Amarinder Singh for several years, has links with the ISI.