Junaid and three others were attacked by a mob in a Mathura-bound train last week.
A Facebook post by a filmmaker against the killing of a 16-year-old has led to an online campaign, with protest marches being organised in five cities across the country. Thousands have pledged to hit the streets this week in support of the campaign, entitled "Not In My Name" on June 28.
Protests will be held in Delhi, Kolkata, Hyderabad, Thiruvananthapuram and Bengaluru simultaneously on Wednesday, said filmmaker Saba Dewan. The family of 16-year-old Junaid, killed by a mob in a Mathura-bound train, will also be invited to join the demonstration, Ms Dewan said. A group of men abused Junaid and his brothers in the train and attacked them after an altercation, allegedly over seats.
She added that the protests reflected the "anger and grief" of the people.
"I never realised the response would be so overwhelming. Despite the debilitating violence, these protests will make us feel we are alive and spark hope," Ms Dewan told PTI.
The campaign sought to "reclaim the Constitution" and "resist the onslaught" on the right to life and equality, the Gurugram-based documentary filmmaker said.
The protest in Delhi will be held at the Jantar Mantar at around 6 pm.
An image designed by graphic artist Orijit Sen featuring the message "Not In My Name" is being shared by hundreds on social media sites along with an appeal to join the protest.
"Please carry banners with the slogan - NOT IN MY NAME. This is a citizens' protest open to all. Everyone is welcome but without party or organisational banners," the invite reads.
It all started on June 24 with Ms Dewan's post calling for protests against mob attacks that have taken place in recent weeks.