Lata Mangeshkar, one of India's most venerated singers who sang tens of thousands of songs in her lifetime, has died at the age of 92.
She had been admitted to a hospital in Mumbai city in January after testing positive for Covid-19.
The doctor who treated her said she died of multi-organ failure.
Mangeshkar had an extraordinary career spanning over half a century, singing more than 30,000 songs across 36 languages.
But it was her work in Bollywood, India's Hindi film industry, that made her a national icon.
The Indian government has announced two days of mourning from Sunday, during which the national flag would be flown at half-mast throughout the country.
She will also be given a state funeral - the date and venue haven't been announced yet.
As news broke, tributes began pouring in for Mangeshkar, who was often called the "nightingale of Bollywood".
President Ram Nath Kovind said the news was "heart-breaking for me, as it is for millions the world over" and added that in her songs "generations found expression of their inner-most emotions".
Prime Minister Narendra Modi said Mangeshkar's death left a "void in our nation that cannot be filled".
I am anguished beyond words. The kind and caring Lata Didi has left us. She leaves a void in our nation that cannot be filled. The coming generations will remember her as a stalwart of Indian culture, whose melodious voice had an unparalleled ability to mesmerise people. pic.twitter.com/MTQ6TK1mSO
— Narendra Modi (@narendramodi) February 6, 2022
Opposition leader Rahul Gandhi said Mangeshkar's voice was "immortal" and would "continue to echo in the hearts of her fans".
Former Indian cricket captain Virat Kohli said Mangeshkar's songs had "touched millions of people around the world".
Several Bollywood stars also expressed their grief at the news.
Meri Awaaz Hi Pehchaan Hain, Gar Yaad Rahe…and how can one forget such a voice!
— Akshay Kumar (@akshaykumar) February 6, 2022
Deeply saddened by the passing away of Lata Mangeshkar ji, my sincere condolences and prayers. Om Shanti
Mangeshkar was born in Indore city, in the central Indian state of Madhya Pradesh, on 28 September 1929.
She began learning music at the age of five from her father, Deenanath Mangeshkar, who was active in theatre.
After her father's death, the family moved to Mumbai (then Bombay), where a teenaged Mangeshkar began singing for Marathi movies.
She also acted in small roles in a few films to support her family, but would say later that her heart wasn't in it. "I was happiest singing." she told interviewers.
She got a big break in 1949 - it was a haunting song called 'Aayega Aanewala' for the movie Mahal.
"Soon every female actor wanted her voice. But she was always busy and only a few fortunate music directors got the chance to make her sing," music director Mohammed Zahur Khayyam later recalled.
Over the next few decades, Mangeshkar sang thousands of songs lip-synced by Bollywood's biggest heroines across generations.
She was nominated to the upper house of India's parliament in 1999, but said later that she had been "reluctant" to take it up and that her tenure there was "anything but happy".
She received India's highest honour for civilians, the Bharat Ratna, in 2001.
In 2004, when she turned 75, one of Bollywood's biggest directors, Yash Chopra, wrote for the BBC that he saw "God's blessings in her voice".
Mangeshkar, who never married, had a rich life outside her work, with interests ranging from cricket to cars.
Her younger sister Asha Bhosle is also a celebrated Bollywood singer. The two always dismissed any hint of sibling rivalry, and even performed together occasionally.
"We're very close - we have never competed with each other," Bhosle told the BBC in 2015.
-BBC