Beverley O’Sullivan, 28, who won gold and platinum discs for her time with Fifth Avenue, was described by Westlife band member Mark Feehily as “gorgeous and talented”.
She died after a car accident outside New Delhi. Her boyfriend, with whom she was travelling, was injured in the accident.
The Department of Foreign Affairs has been providing consular assistance to her family.
She toured with Fifth Avenue for three years during which time she supported acts like Westlife, Lenny Kravitz, Shakira and Shaggy.
The couple left home on Sunday last for a six-week holiday and had hired a car and driver for the first leg of the trip.
Her parents Eoin and Beverley live in Donaghmede. Her brother Wayne, who was in Buenos Aires, is expected to fly home.
Since the band broke up, Ms O’Sullivan had been working on a solo career performing at private functions and weddings.
Her short career included a three-year stint as support for Westlife.
She appeared on TV programmes in interviews with the band on The Den and The Lyrics Board, among others.