Apply for CSC Center Online Open the CSC Portal i.e. www.csc.gov.in. Click on “Interested to become a CSC” on the left side of the page. Click on Link given ” For CSC Registration, Click Here” Enter the Aadhar Number in required box. After that choose the authentication Option from IRIS/ Finger Print/ One Time Password. ... Click on Generate OTP CSC REGISTRATIONS 2021, CSC AADHAR SERVICE 2021