The victim's family said the girl was cremated without their consent and feared she was assaulted by a priest and three crematorium workers.
The alleged rape and murder of a nine-year-old, low-caste girl has sparked a third day of protests in India's capital, in the latest case to spotlight the country's high levels of sexual violence.
Hundreds of demonstrators took to the streets in New Delhi on Tuesday, holding banners reading "give justice to the little girl" and demanding the death penalty for the four men accused of the crime.
The 200-million-strong lowest caste Dalit community has long faced discrimination and abuse in India, with attacks increasing since the start of the coronavirus pandemic.
Delhi Chief Minister Arvind Kejriwal tweeted on Tuesday that the alleged attack was "barbaric" and "shameful".
"There is a need to improve the law and order situation in Delhi," he wrote, adding that he would meet with the girl's family on Wednesday.
Opposition Congress leader Rahul Gandhi tweeted Tuesday that "a Dalit's daughter is also the daughter of the country".
The girl's family told local media she was cremated without their consent and feared she was assaulted by a priest and three crematorium workers.
Terrorism of casteists in India at peak level like Delhi cantt 's 9 years old girl rape and murder incident, Hathras rape and murder case and also cremated forcefully by criminals#JusticeForDelhiCanttGirl #RapistShould_BePunished— Brajesh Jarsonia (@BrajeshJarsonia) August 3, 2021
She had gone to the crematorium, which is located near the family's home in southwest Delhi, to fetch water on Sunday.
The four men allegedly called her mother to the crematorium and told her the girl had been electrocuted.
Her mother was told that if she reported the incident to the police, doctors conducting an autopsy would remove her organs and sell them, Deputy Commissioner of Police for southwest Delhi, Ingit Pratap Singh, told the Hindustan Times.
The child's body was then cremated, Singh added.
The four were later arrested by police and charged with rape and murder, the newspaper reported.
Few months ago our so called celebrities were eagerly active on social media for #BlackLivesMatter but they are intentionally silent on discrimination against dalits and adivasi.— रवि (@ravidolse) August 3, 2021
Because in india cast really matter.
Even in rape case.#हाथरस_के_बाद_दिल्ली_में_हैवानियत
The brutal rape & murder of a 9 yr old in Delhi has put India to shame yet again.— Vijay Darda (@vijayjdarda) August 3, 2021
साहिर का वो बयान जो दिल दहला देने वाले गुना का दर्पण है, दोहरा रहा हूं।
'ये सदियों से बेख्वाब, सहमी सी गलियाँ
ये मसली हुई अधखिली ज़र्द कलियाँ
जिन्हें नाज़ है हिन्द पर वो कहाँ हैं'#DelhiCanttCase
An average of nearly 90 rapes of girls and women were reported in the nation of 1.3 billion every day in 2019, according to data by the National Crime Records Bureau.
But large numbers of sexual assaults are thought to go unreported.
Last year, the death of a 19-year-old woman from her injuries after being allegedly raped by four upper-caste men in the northern state of Uttar Pradesh sparked outrage across the country and triggered days of protests.