Addressing a gathering in the rural Polonnaruwa, he said the current government under President Maithripala Sirisena is attempting to wipe off from public memory his legacy of ending the war waged by the LTTE.
"I ended the war to achieve reconciliation," Rajapaksa said, adding he in the last stages of his rule had begun to handover the Tamil civilian lands back to their owners".
Rajpaksa also alleged that Sirisena's government is wasting time on its current political "witch hunt" aimed at taking political revenge from him.
"The government is wasting time on investigations without delivering the promises," Rajapaksa said.
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Rajapaksa's government became unpopular with the the minority Tamil and Muslim communities. They backed Sirisena in defeating Rajapaksa in the snap presidential election called by the latter two years ahead of schedule.
Rajapaksa's family has faced a string of investigations over alleged wrongdoing after he was thrown out of power.