The anti-terror National Investigation Agency (NIA) is likely to probe the blast that took place near the Israeli Embassy in New Delhi, reported NDTV.
According to a report by IANS, a team of NIA officials had visited the blast site on Friday evening and collected material from the site for investigation. The team of the NIA officials also carried out a complete mapping of the area to identify the route and the persons involved in the blast.
Meanwhile, Delhi Police's Special Cell is questioning some people, including a few Iranian nationals, in connection with the blast near the Israeli Embassy.
A team from the National Bomb Data Centre (NBDC) of the NSG visited the spot for post-blast analysis, a senior officer told news agency PTI. He further added that the findings will be shared with the Delhi Police team investigating the case.
Israel's ambassador to India Ron Malka, meanwhile, said there are enough reasons to believe it was a terrorist attack but they are not surprised at the event as the alert level had been increased for the past few weeks following intelligence inputs.
In an interview with PTI, he also said the investigations will look into all possible angles, including whether there are any links to the 2012 attack on Israeli diplomats here while events around the world are also being examined to find any related operations or activities at any destination.
"These attacks by those seeking destablisation in the (West Asia) region cannot stop us or scare us. Our peace efforts will continue uninterrupted," he said when asked whether the attack was aimed at derailing Israel's peace efforts with various Arab countries.
He said Israeli authorities and the embassy are providing all assistance and every information Indian authorities probing the attack.
A low-intensity improvised explosive device(IED) went off near the Israeli Embassy in the heart of Delhi on Friday evening but no one was injured.
Some cars were damaged in the blast that occurred about 150 metres away from the Embassy in Dr APJ Abdul Kalam Road in the very high-security Lutyens' bungalow zone.
An envelope addressed to the Israeli Embassy and containing a note, purportedly linking the blast to Iran, was also found at the site of the blast.
Initial investigations revealed that the IED was planted in a flower pot on the median near Jindal House on A P J Abdul Kalam road outside the Israeli embassy.
The blast took place when President Ram Nath Kovind, Vice President M Venkaiah Naidu, and Prime Minister Narendra Modi were present a few kilometres away at the Beating Retreat ceremony.
Besides, it coincided with the day when India and Israel marked the completion of the 29th anniversary of the establishment of their diplomatic relations.
(With inputs from Agencies)
