Rajapaksa vows to abolish Sri Lankan constitution's 19th Amendment that curtails presidential powers
The 19A adopted in 2015 by the then reformist government was subject to much criticism by the Rajapaksa clan as it prevented dual citizens from contesting elections.
At the inaugural session, President Gotabaya Rajapaksa is due to present his policy statement of his government for the next five years.
The government halted the repatriation of its citizens from various countries from July 14 in view of the increasing number of cases.
The UN rights body has passed three successive resolutions since 2013 calling for war crimes investigations on both government troops and the LTTE.
Rajapaksa told the UN official that after the conclusion of the necessary investigations, steps would be taken to issue death certificates and support for the families.
The Tamils alleged that thousands were massacred during the final stages of the war that ended in 2009 when the government forces killed LTTE chief Velupillai Prabhakaran.
In his first ceremonial address to Parliament, the president outlined his government's vision for efficiency, eradication of corruption and crime with accelerated infrastructure development.
Shavendra Silva's 58th division has been accused of violating international human rights laws, including shelling a hospital.
Commenting on the Tamil demand for political autonomy, Rajapaksa on Thursday stressed that no devolution of power would be possible without the consent of the majority.
The 13th amendment, an outcome of an agreement reached between India and Sri Lanka in 1987, deals with devolution of land and police powers to the provinces in Sri Lanka.
His party - Sri Lanka People's Front - lacks the working majority in the 225-member assembly and ending the session will give him freedom to rule without obstruction from the Opposition.
The President said the security situation was continuously reviewed with intelligence officers.
Sri Lanka-India bilateral ties revitalised, will maintain warm relations with New Delhi: Gotabaya Rajapaska
India offered a USD 400 million credit line to Sri Lanka for development of its infrastructure and economy during president Rajapaksa's visit to New Delhi.
The show is based on DC Comics characters and is produced by Warner Bros. Television. 'Gotham' is aired on Zee Cafe in India.