Iran has reacted sharply to allegations by Israeli Prime Minister Benjamin Netanyahu that the country was responsible for planting bombs in cars belonging to Israel's embassies in India and Georgia.

Four people were injured when a car carrying an Israeli diplomat's family was blown up in Delhi while a bomb was found in a car on the embassy premises in the Georgian capital of Tbilisi.

The blast in New Delhi left the diplomat's wife, Tal Yehoshua, and three others injured. The blast occurred Monday afternoon when Yehoshua left the embassy to pick up her children from school.

Eyewitness and police said a motorcycle-borne man followed the car and attached a magnetic object to the back of the vehicle and the object exploded immediately, wounding Tal Yehoshua, her Indian driver and two passersby.

Yehoshua suffered shrapnel wounds. She underwent a surgery in a Delhi hospital Monday night.

Netanyahu alleged that terror group Hezbollah was behind the car bombings against Israeli diplomats in Delhi and Tbilisi.

He said, Iran is behind these attacks; it is the largest exporter of terrorism in the world. He alleged that Iran and its proxy, Hezbollah, were behind several previous attempts to attack Israeli citizens and Jews in several countries in the recent past.

However, Iranian Foreign Ministry spokesman Ramin Mehmanparast denied the charge saying, Israel launched attacks against its own embassies in New Delhi and Tbilisi in order to tarnish Iran's friendly ties with the host countries. Israel perpetrated the terror actions to launch psychological warfare against Iran.

Meanwhile, reported Israeli sources as saying that Israel would not respond harshly to the attacks.