City Police Commissioner B K Gupta said the three Iranians -- Houshang Afshar Irani, Syed Ali Mahdiansadr and Mohammadreza Abolghasemi -- had recceed the Israeli embassy earlier with the help of an Indian journalist Syed Mohd Ahmad Kazmi (50), who was arrested on March 6.
Investigators claimed that they tracked Kazmi after finding his links with one of the Iranians who was in touch with the head of the module which carried out the attack in Bangkok.
They also said the module, which attacked the Israeli embassy car on February 13 on Aurangazeb road injuring a mission employee and three others, had recceed the mission office way back in May last year before returning to check again in January and February.
Syed Mohd Ahmad Kazmi (50), who resides in south Delhi's Jor Bagh and writes for Iranian publications, was arrested on March 6 following investigations into the incident, which prompted Israel to point fingers at Iran immediately after the incident.
Sources claimed Kazmi, whom police said was the "conspirator and not the executioner" of the plot, helped the Iranians carry out the attack for money and ideological reasons.
Investigators said they tracked Kazmi after the arrest of Masoud Sedaghatzadeh, the operational head of the module which carried out the attack in Bangkok, in Malaysia.
According to police sources, Sedaghatzadeh was in touch with Irani and technical surveillance of Irani led to his alleged links with Kazmi. Irani, after his visit to Delhi in February, fled to Malaysia before the attack.
Addressing a press conference, Gupta said Kazmi was "instrumental" in getting the Israeli Embassy and its surrounding areas receed by the suspected persons of Iranian origin.