"(The) Centre's failure to bring the real perpetrators of 26/11 to justice is disappointing," Modi tweeted.

"It is high time (the Central Government) acts decisively," the Gujarat chief minister said.

Tuesday marks the fifth anniversary of the Mumbai terror attack by 10 Pakistani terrorists that left 166 Indians and foreigners dead. One of the terrorists, Ajmal Amir Kasab, was arrested -- and hanged.

Modi said: "Best tribute to the victims is to ensure that such attacks never happen."

He added: "Due to 26/11 attacks, we lost our heroes who put duty before self, who sacrificed themselves for the nation. Salute to them! 26/11 is a grim reminder of the security threat India faces.

"Let us assure families of the victims that sacrifice of their near ones will not go in vain. (It is) time to work towards a stronger and safer India."

(Agencies)

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