The government said those missing from the list would have a chance to resubmit documents between August 30 and September 28, and had the option to appeal at the foreigners' tribunal.
Of the more than 32 million people who applied to be recognized on the register of Indian citizens, 4,007,707 were rejected, registrar general Sailesh told reporters in the state's capital, Gauhati.
Modi's Bharatiya Janata Party (BJP) won control of Assam in 2016 after promising to expel illegal immigrants from mainly Muslim Bangladesh and protect the rights of indigenous groups.
Image Villagers are having to get documents verified
In 1983, scores of people were killed by machete-armed mobs intent on hounding out Muslim immigrants.
The names of his son and daughter too were missing from the NRC, which is being updated to detect illegal migrants in Assam.
"No genuine Indian citizen will be devoid of their citizenship rights", Assam Chief Minister Sarbananda Sonowal, said in a tweet. "We can not contact people in Assam".
The arrival of millions of refugees to Assam in 1971 - when Bangladesh seceded from Pakistan after a bloody civil war - brought the issue of these so-called foreigners into national focus. "Once the draft list is out, you will see it isn't biased and you will be proud of it", Mr Sarma, who also the head Assam government's cabinet sub-committee on NRC, added.
Chelsea Superstar Agrees Personal Term With Real Madrid
Slapping a price tag that high on a player who will be 28 in January is basically how you announce- "not for sale, period". Mattia Caldara is the name now being touted with a move to Stamford Bridge as negotiations for Rugani continue to drag on.
Addressing the media, Mamata said, "names of people were removed on the basis of surnames also".
To be recognized as Indian citizens, all residents of Assam had to produce documents proving that they or their families lived in the country before March 24, 1971.
In many cases, earlier documented by Al Jazeera, people have faced harassment and discrimination, with several individuals falsely marked "D" voters or declared foreigners.
India maintains that hundreds of thousands of people have illegally entered the country from neighbouring Bangladesh over decades and settled down in the northeast. The state has a 167-mile porous border with Bangladesh. Until then, no one will be declared an illegal migrant.
Judge Slams Trump Admin For 'Losing Several Hundred Parents'
This mean that of the 2,531 children concerned, 711 have not being reunited with their parents, and remain in government custody. The group also requested that the government elaborate on why dozens of parents were deemed "ineligible" for reunification.
Supreme Court of India has been supervising the entire process.
Vice President M Venkaiah Naidu said he had requested Home Minister Rajnath Singh to respond to queries on the National Register of Citizens, but the legislators continued to disrupt proceedings. "This is a very sensitive issue and it should not be politicized", said Singh.
Political activists in Assam say most of those are Bengali-speaking Muslims. "I request the Centre that amendments be moved so that these 40 lakh people get to stay in Assam", he said.
A day after Facebook's rout, Twitter plunges on weak user numbers
The company said in April that monthly active user growth could be " negatively impacted " by the new rules. Twitter's put its EBITDA guidance for the third quarter between $US215 million and $US235 million.