- Protests in several cities, towns demand action on rapes of young girls
- Celebrities join in, thousands demand justice on social media
- Group of former civil servants writes strong letter to PM over incidents
Here are the top 10 developments in this big story:
Thousands joined in marches, carrying placards and forming human chains in Delhi, Mumbai, Bengaluru, Goa, and across Kerala. Protests were also held in Rajasthan's Ajmer, Gujarat's Surat, Punjab capital Chandigarh, and Bhopal, the capital of Madhya Pradesh.
Nearly 2,000 protesters, including activists who participated in the "Not In My Name" protests last year, gathered at Parliament Street in the heart of Delhi. Swati Maliwal, the chief of Delhi Women's Commission, announced a hunger strike.
In Mumbai, a section of Bollywood, including actor Priyanka Chopra and producer Ekta Kapoor asked fans to join the protests, which started at Carter Road in the posh Bandra area. "Everyone should come. Whatever religion, gender or belief you belong to. For humanity, for justice," Ekta Kapoor tweeted.
In an open letter, a group of 49 former civil servants have asked Prime Minister Narendra Modi to reach out to the families of the children targeted in Kathua and Unnao and "seek their forgiveness".
"The bestiality and the barbarity involved in the rape and murder of an eight year old child shows the depths of depravity that we have sunk into. In post-Independence India, this is our darkest hour and we find the response of our Government, the leaders of our political parties inadequate and feeble," the letter read.
The unspeakable rape and murder of the 8-year-old in Jammu and Kashmir's Kathua -- who belonged to a nomadic Muslim community -- outraged the country after details were exposed in a police chargesheet.
The child was kidnapped on January 10. Over the next week, she was drugged, starved, repeatedly gangraped and then murdered. A police chargesheet also said before her head was bashed with a stone, one of the assailants - a police officer - had asked the killer to wait so he could rape the child for one last time.
Days before the gory details emerged, another young girl from Unnao had tried to commit suicide outside Uttar Pradesh Chief Minster Yogi Adityanath's house. She said she had been raped by BJP lawmaker Kuldeep Singh Sengar and his brother a year ago.
A day later, her father, who had been mercilessly thrashed for his refusal to withdraw the case, died. The lawmaker's brother was arrested in the case of assault.