NIA has sought the help of the general public in identifying individuals who vandalised the Indian High Commission in London in March this year.
The agency has posted links to five videos of the incident that occurred on March 19 and urged the people to provide any information regarding the persons seen in the footage.
The footage shows a crowd gathering outside the High Commission with Khalistan flags.
The agency took over the probe from the Special Cell of the Delhi Police which had registered a case under the Unlawful Activities (Prevention) Act and the Prevention of Damage to Public Property Act as it involves illegal activities carried out by certain people holding Indian nationality abroad.
Pro-Khalistani protestors tried to vandalise the Indian High Commission in London and pulled down the national flag while holding protests outside the High Commission complex on March 19. It happened a day after Punjab Police launched a crackdown against radical preacher Amritpal Singh in Punjab.
(with PTI inputs)