President Asif Ali Zardari said Saturday that war was not the solution to the problems of the region, calling for dialogue amid simmering tensions with India after the Mumbai attacks. "Dialogue is our biggest arsenal," Zardari told ministers and lawmakers at the family home in Naudero of his dead wife, former premier Benazir Bhutto, who was assassinated one year ago in a gun and suicide attack. "The solution to the problem of the region... is politics, is dialogue and is democracy in Pakistan," Zardari said in a speech carried live on state television. "I want to tell the oldest democracy and the largest democracies of this world -- listen to us, learn from us," the president said, in a clear reference to India. "We have lost our people -- we do not talk about war, we do not talk about vengeance," he said. Relations between Pakistan and India have plummeted in the wake of the deadly Mumbai attacks, which New Delhi has blamed on the banned Pakistan-based extremist group Lashkar-e-Taiba.