* The first-ever NRC was published in 1951 in Assam based on Census Report of 1951 containing names of 80 lakh citizens.
* The Centre took the first official decision to update the NRC of 1951 as per the Assam Accord’s cut-off date to detect illegal foreigners during a tripartite meeting involving the Centre, State Government and AASU on November 17, 1999.
* Immediately after the tripartite meeting the Centre had sanctioned Rs 20 lakh to start the NRC update process & released Rs 5 lakh to State Government. But the State did not use the funds and NRC update remained in papers.
* The AASU gave a boycott call to then Prime Minister Manmohan Singh’s visit to Assam during an Indo-ASEAN car rally in November, 2004 in protest against non-implementation of the Assam Accord
* Boycott call forced the Assam Government to give an assurance to the AASU to hold a Prime Minister-level talk on Assam Accord implementation. The AASU finally withdrew its boycott.
* On May 5, 2005 the tripartite talk in the presence of then PM Manmohan Singh formally adopted a resolution to update the NRC within September 2007. But nothing progressed beyond the talk.
* On July 12, 2009 Assam Public Work, an NGO, filed a writ petition (274/2009) in the Supreme Court claiming that the names of 41 lakh foreigners included in the electoral rolls of Assam.
* In response to the APW case the Centre told SC that the NRC 1951 being updated to detect illegal foreigners so that Assam could have electoral rolls of genuine Indian citizens based on updated NRC. Later the AASU became an intervener in the case.
* On April 22, 2010 then Union Home Secretary held a tripartite meeting where the decision to conduct a pilot project to update NRC in Barpeta district and Chhaygaon revenue circle in Kamrup district was taken.
* While Chhaygaon pilot project was successful, violence in July, 2010 that claimed four lives halted the project in Barpeta. The Bapeta violence forced the Assam Government to shelve the entire NRC update.
* After Barpeta violence the AASU and 26 other ethnic organizations started a joint movement for NRC update.
* The Assam Government formed two Groups of Ministers after the Barpeta violence to chalk out modalities and other formalities for NRC update. GoM consulted the AASU, 26 ethnic organizations, the AAMSU and others to prepare modalities and application forms for the NRC update.
* Prateek Hajela joined as State Coordinator of NRC on September 6, 2013.
* Finally it was in 2013 when the Supreme Court’s intervention made the Centre and State government to start NRC update work in full swing from the first part of 2015. December 31, 2015 was set as a deadline to complete the update by the SC.
* August 31, 2015 was the last date for people to submit applications to enroll their names in the updated NRC.
* A total of 3,29,91,384 people applied to enroll their names in updated NRC through 68,31,330 applications.
* The updated draft NRC could not be published within the first deadline December 31, 2015 set by the SC.
* In the middle of 2017, the SC set December 31, 2017 deadline for publication of the draft NRC.
* Even though the RGI sought more time to publish the draft National Register of Citizens and extend the December 31 deadline up to July 2018, the SC turned down the plea and asked the authorities concerned to publish the partial draft NRC on expiry of December 31 midnight
* Partial draft NRC was published on expiry of midnight of December 31, 2017 comprising names of 1.90 crore applicants.
* On February 20, SC set June 30, 2018 as the deadline for publication of the complete draft NRC.
* Due to floods in Assam the SC extended publication of complete draft National Register of Citizens to July 30, 2018.
* On July 30, 2018 the complete draft National Register of Citizens was published containing names of 2,89,83,677 out of 3,29,91,384 applicants. Altogether 40, 07,707 applicants were left out from the complete draft NRC.
* The exercise of receiving Claims & Objections started on September 25 & continued till December 15, 2018. While 36.2 lakh people filed claims to enroll their names in the final NRC, Objections were filed against 2 lakh people who were included in the complete draft NRC. And 3.87 lakh people whose names were left out from the complete draft National Register of Citizens did not filed claims.
* On January 24, 2019 the SC set July 31 as the deadline for publication of the final NRC.
* Disposal of claims & objections started on February 15, 2019.
* On June 26, 2019 an Additional Draft Exclusion List consisting of 1,02,462 persons was published. The persons whose names appeared in this list are those persons whose names were included in the complete draft NRC published but subsequently found ineligible due to some reasons.
* On July 23, 2019 the SC extended its July 31 deadline to August 31 for publication of the final NRC. The apex court also rejected pleas of the Centre and Assam Government for 20 per cent samples re-verification to find out wrongful inclusions or exclusions in the NRC.
* The re-verification plea was dismissed after the NRC coordinator told the SC that there was no need for further re-verification as over 72 lakh people had been re-verified already to consider exclusion/inclusion of names in the list.