"It is a significant verdict given by Tamil people in the Northern Province of Sri Lanka. Primarily, it is a verdict against the Rajapaksa government", Raja told PTI.
"Now the Rajapaksa government should own accountability for all it did to Tamil people," Raja added.
"If the Rajapaksa government has any respect for the verdict of the people, it should immediately stop militarisation of the Tamil areas and the forced disappearance of Tamil youth," he said.
"What power TNA would have, we will have to wait and see," he said responding to a query on whether the 13th Amendment to the Sri Lankan Constitution would now be implemented.
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"The 13th Amendment talks about more powers to Tamil people in Sri Lanka. Whether the new provincial government will have those powers or will be given those powers, we will have to wait and see", he said.
"Being Sri Lanka's immediate neighbour, the government of India knows what happened in there - the war crimes, human rights violation.
TNA trounced Rajapaksa's ruling UPFA coalition, grabbing 30 of the 38 seats in the much-awaited polls which were held after a gap of 25 years in the former Tamil Tigers-ruled northern province.
Commenting about the frequent arrest of Tamil Nadu fishermen by Sri Lankan Navy, Raja endorsed Chief Minister Jayalalithaa's stand on the matter.
Jayalalithaa has been seeking Centre's intervention for an amicable solution to the issue.