As many as 3.29 crore people had applied for inclusion in the registry.
Releasing the first draft, Registrar General of India (RGI) Sailesh said, "There is no need for anyone to panic. Other names are in various stages of verification. As soon as the verification is done, we will come out with another draft... Substantial progress has been made, but still lots of work need to be done."
About the possible date for the next draft, Sailesh said the NRC Authority will present its case before the Supreme Court, under whose monitoring the document was being prepared, at the next hearing in April and the date would be decided accordingly.
"We are working to publish an error-free draft. What time and when we will publish the next draft will be as per the Supreme Court guidance... We will be able to complete the entire process in this year," the RGI said.
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NRC State Coordinator Prateek Hajela said application process began in May 2015 and a total of 6.5 crore documents were received from 68.27 lakh families across Assam.
"The process to verify the names is tedious. So there is a possibility that some names within a single family may not be there in the first draft. There is no need to panic as rest of the documents are under verification," he said.
People carrying documents to prove their citizenship, thronged the seva kendras, which opened at 8 am, and stood in long queues to check if their names were included in the draft.
Servers of the official websites for checking names in the NRC draft got jammed as thousands of people were attempting to see their names in the first draft online, NRC sources said.
The Office of the State Coordinator of National Register of Citizens, Assam, has arranged for five ways to check the names included in the draft.
Printed copies of the draft can be checked at NRC seva kendras today between 8 am to 4 pm and 10am to 4 pm on all working days till January 31. It can also be checked online at www.nrcassam.nic.in, www.assam.mygov.in, www.assam.gov.in and www.homeandpolitical.assam.gov.in.
One can also call the 24X7 toll-free helpline number 15107 from Assam and 18003453762 from outside Assam the check if a name has been included in the first draft.