The amendment has been made to the Telecom Consumers Complaint Redressal Regulations, 2012 and the regulations will be called the Telecom Consumers Complaint Redressal (Third Amendment) Regulations, 2014, the TRAI said in a notification.
Accordingly, the new definition of broadband is "a data connection that is able to support interactive services including internet access and has the capability of minimum download speed of 512 kbps to an individual subscriber from the point of presence (POP) of the service provider intending to provide broadband service".
The regulations will come into force after publication in the official gazette, it added.
The Department of Telecommunications (DoT) had revised the broadband speed in consonance of the National Telecom Policy 2012 and TRAI recommendations, the regulator said.
The earlier minimum broadband speed of 256 kbps was as per the Broadband Policy 2004.
According to National Telecom Policy 2012, the government aims to raise the broadband download speed of to 512 kbps from 256 kbps and subsequently to 2 Mbps by 2015.
According to TRAI data, total broadband subscribers in the country rose by 5.82 percent to 65.33 million at the end of May 2014 from 61.74 million at the end of April 2014.
While wired broadband subscribers stood at 14.95 million as of May this year, mobile device users (phones and dongles) were 49.97 million and the fixed wireless (Wi-Fi, Wi-Max, Point-to-Point, Radio and VSAT) subscribers stood at 0.41 million for the same period.