The input was sent through diplomatic channels to the island nation after a through investigation pertaining to the IS case in Coimbatore was carried out by the NIA.
Authorities also released photographs of six suspects, including three women, wanted for their involvement in the attacks and sought information regarding them from the public.
Security has been beefed up in Sri Lanka as the army increased its deployment by 1,300 to 6,300.
Those requiring to undertake emergency travels can contact the High Commission of India in Colombo.
'If there is a push towards a Marxist oriented government it will be dangerous.' 'We have seen this in Nepal and Myanmar and it will be a concern for India if it is surrounded by countries with such political dispensations.'
The attorney general instructed the authorities to charge them for their failure to prevent the Easter terror attacks.
Police said they have seized a large haul of explosives, a drone and a banner with the Islamic State logo.
Meanwhile, a three-member committee appointed to probe the attacks that killed 258 people, including 11 Indians, on Monday submitted its final report to President Maithripala Sirisena.
Dr Anil Jasinghe, Director General of the Health Services, said the larger death toll was released as a result of a calculation error.
He said that the Sri Lankan authorities have arrested more of their associates but it won't be right to reveal any more details on them as the investigation is going on.
While 10 persons from Karnataka have been confirmed dead, at least seven of them are said to be JD-S workers.
US Secretary of State Antony Blinken, in the 2020 Country Reports on Terrorism issued on Thursday, said that regionally, terrorist groups continued to operate from Pakistan.
Several people succumbed to their injuries sustained in the blasts, taking the death toll to 359.
Polls opened at 7 am local time and would close at 5 pm with some 12,845 polling stations being set up throughout the country for 15.9 million voters, who will choose a successor to President Maithripala Sirisina.
In searches carried out in the city earlier, the NIA had arrested two people -- Mohammed Azarudheen and Shiek Hidayathulla.
'The blasts in Lanka are against our ideology.'
'A fragile Sri Lanka will have a serious impact on the security of India.'
Father Edmond Tillekeratne, social communications director for the Archdiocese of Colombo, said that the blast took place after Easter Mass, and that there were about 30 bodies lying in the area of the church.
Sri Lankan foreign ministry said that the number of foreign nationals who have been killed in the attack rose to 36.
Rajapaksa's five-day visit to India assumes significance as his tenure as Sri Lanka's president from 2005 to 2016 saw expansion of China's footprints in the Indian Ocean island nation, triggering concerns in India.
'Ramadan is a time when people join forces in pursuit of hope, tolerance and peace. It is in this spirit that we come together tonight for Iftaar, the traditional Ramadan meal that breaks the daily fast,'
A Dubai-based Indian couple had a narrow escape in the Sri Lanka blasts.
Sangakkara, who was appointed the first non-British president of prestigious Marylebone Cricket Club (MCC) earlier this month, expressed shock at the communal riots in the island nation.
Prime Minister Narendra Modi congratulated Rajapaksa and said he looks forward to further deepen relations between the two nations.
President Rajapaksa, through a special gazette last month, appointed the 13-member task force for the establishment of a 'One Country, One Law' concept in Sri Lanka and comprised members from the majority Sinhala and minority Muslim communities.
Though dubbed as the "war hero", the role of Rajapaksa in ending the conflict with the Liberation Tigers of Tamil Eelam with the death of its supremo Velupillai Prabhakaran in 2009 is quite divisive as he stands accused of violating human rights, a charge he vehemently denies.
The blasts -- one of the deadliest attacks in the country's history -- targeted St Anthony's Church in Colombo, St Sebastian's Church in the western coastal town of Negombo and Zion Church in the eastern town of Batticaloa around 8.45 am (local time) as the Easter Sunday mass were in progress.
He also reiterated India's strong support in the fight against terrorism with Sri Lanka, which saw the country's worst terror attack on Easter Sunday.
'We should expect a cold-blooded, transactional relation that requires a lot of engagement and mutual trust to sustain,' says Constantino Xavier, Fellow, foreign policy, Brookings India.
Hundreds of Muslim women on Friday protested against the Sena mouthpiece.
Though dubbed as the 'war hero', the role of Rajapaksa in ending the conflict with the LTTE with the death of its supremo Velupillai Prabhakaran in 2009 is quite divisive as he stands accused of violating human rights, a charge he vehemently denies.
The NIA on Thursday filed a chargesheet against six people in connection with the October 2022 Coimbatore car bomb blast, saying the prime accused of the terrorist attack was "inspired by ISIS ideology".
'Can any nation claim, guarantee that there will be no terror strike?'
After carrying out searches at seven locations in the city on Wednesday, the NIA had detained six people for questioning and arrested prime accused Mohammed Azarudeen, who was a Facebook friend of Sri Lankan Easter Day blasts mastermind Zahra Hashim.
Pompeo would leave for New Delhi on June 24.
Driven from its self-styled caliphate in Iraq and Syria, Islamic State is down but not out. Where once they confronted armies, the extremist Islamist group's adherents have now staged hit-and-run raids and suicide attacks. In some cases, the group has claimed responsibility for atrocities, including the bombings of churches and hotels in Sri Lanka that killed at least 253 people. Its involvement is not always proven, but even if the link is ideological rather than operational, Islamic State still poses a security threat in many countries.
The reports suggested six members of the terror outfit infiltrated into the state by sea from Sri Lanka and moved to different cities, including Coimbatore, according to the police.
There is only one perpetrator, Hamas. It is a terrorist organisation. It is obscene to argue that until the Palestinian question is solved, anybody has the right to use terrorism as an instrument of policy, argues Shekhar Gupta.
'The NIA has shared with states concerned a list of 125 suspected activists who have close links with the JMB leadership'
Gota has to decide if he could order elder brother Mahinda's arrest as the agent provocateur of Monday's violence. Then he has to prepare for an interim government, in which no one would now want to become a cabinet minister leave alone prime minister, explains N Sathiya Moorthy.
