In India Digital Signature certificate for Class 2 / Class 3 are issued for the validity of one year by CCA appointed certifying authorities like Ncode, TCS, Safescrypt and emudhra. Tata Consultancy Services also issues class II DSC – Empower India DSC with validity of six months. Before the validity expires the owner of the DSC needs to renew the Digital certificate to continue using it legally. A simple digital signature certificate renewal form needs to be filled giving details for old/ expired Digital certificate along with the applicant’s signature and rubberstamp (mandatory for companies only). Applicant can change details like email address and phone No while applying for the renewal of digital signature certificate.