The exchange launched its new electronic Initial Public Offers or e-IPO bidding system in January.
The system has the facility of web-based log-in through the internet, offline bid entry post market hours, download facility of orders and order history, among others.
"In order to enhance the security measures, the Exchange shall be implementing Two factor authentication (2FA) for user of e-IPO web-based application," NSE said in a circular.
Two-factor authentication is a security process in which the user provides two means of identification from separate categories of credentials.
Earlier, the exchange has already implemented two-factor authentication for users of its web-based mutual fund platform as well as in negotiated trade platform.