Rajapaksa telephoned Modi to congratulate him on his resounding victory and extended an invitation to the BJP prime ministerial candidate to visit the island-nation, President's spokesman Mohan Samaranayake said.
The BJP win was welcomed in Sri Lanka as the Rajapaksa government's relations with the Congress Party led-UPA government had soured over the years.
The Congress government had backed two UN Human Rights Council resolutions against Sri Lanka while it abstained from voting during US-backed resolution in March.
Leading commentator Dayan Jayathilaka said that the BJP victory would lead the India-Lanka relations into a decisive phase.
Jayathilaka, a former Sri Lankan diplomat, said that Rajapaksa needs to develop a close friendship with Modi.
"Modi-Mahinda (Rajapaksa) friendship will be the key to all this," Jayathilaka said.
"There are similarities in Modi's and Mahinda's political discourses. Both have a nationalist flavour in their political approaches."
He, however, warned there will be forces who would want to create wedge between the two leaders.
He hinted that Modi might be more assertive towards Sri Lanka than Prime Minister Manmohan Singh Singh.
"This is why I say the BJP victory is decisive for Sri Lanka. It all depends as to how our President will be able to cultivate a friendship with Prime Minister Modi and move ahead."


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