The bomb disposal squad rushed to the spot and defused the bomb, which is the 21st explosive device recovered from the city during the last three days.

The bomb found this morning was similar to those recovered yesterday from in and around Varacha, where several diamond units are located, they said.

Modi on Wednesday visited the spots from where 18 bombs were found on Tuesday.

On Sunday, a day after the Ahmedabad serial blasts, police had defused a bomb near a hospital in New Citylight area.

The same day, police recovered two explosives-laden cars, stolen from Mumbai, in different parts of the diamond city. Large amount of explosives, shrapnels and timer devices were found in the cars which bore fake number plates.

The police later released the sketch of a suspect who might have parked the car in Heerabaugh area.