India, July 5 -- Hundreds of people gathered for a candlelight march in DLF Phase 4 on Saturday evening, demanding justice for 34-year-old Sarthak Mattoo, who was killed in an alleged hit-and-run on June 25 in south Delhi's Vasant Kunj.

Joined by Mattoo's family, friends and supporters, the protesters marched from Ridgewood Estate to Galleria Market, calling for a fair and expeditious investigation into the case.

Mattoo's parents have alleged lapses in the investigation. They claimed that blood samples of the two accused were collected nearly 48 hours after the incident, arguing that the delay may have compromised efforts to establish whether the accused were under the influence of alcohol at the time of the crash.

"We want justice for...