Security agencies, probing Monday's attack on an Israeli diplomat, have received information on similar strikes in Thailand and Georgia in the past few days.
"Government agencies got information from Georgia and Thailand regarding organisations and persons. The forensic experts are working on these leads. Analysis is also on to match things used in the Tbilisi and Bangkok strikes with those found in the Delhi incident," an official source said.
According to officials monitoring the case, forensic experts are trying to ascertain whether there are any similarities in the explosion here with the two blasts.
Police in Georgian capital Tbilisi had thwarted an attack on Monday when they disabled an explosive device found in the car of an Israeli embassy employee.
Three Iranian youths were arrested in Thailand and Malaysia in the past two days after the explosive device went off accidentally in Bangkok.
According to Bangkok police, the three were planning to attack Israeli diplomats.
Israeli diplomat Tal Yehoshua Koren, who is the wife of that country's Defence Attache, was seriously injured when terrorists triggered an explosive device on the vehicle carrying her on Monday.
She is at present admitted to a private hospital in Delhi.
Bangkok Police said two homemade "sticky" bombs found at the blast site on February 14 matched the devices planted on Israeli diplomatic cars in India and Georgia.
