Delhi Police on Sunday launched an investigation into the stampede at the New Delhi Railway Station, saying it will analyse CCTV footage to determine the sequence of events before the chaos erupted.
A police officer said inquest proceedings have been initiated.
"Our teams are informing family members of the victims. We have already launched an investigation and inquest proceedings," the officer said.
"Our main target is to investigate the main cause which caused the stampede. We will collect all data of CCTV footage and announcements done during that time," a police source said.
The stampede on Saturday night left 18 people dead. It was preceded by a swell in crowd of passengers waiting to board trains for Prayagraj -- where the Maha Kumbh is underway -- on platform number 14 and 15 of the station.
The deceased have been identified as Asha Devi (79), Pinky Devi (41), Sheela Devi (50), Vyom (25), Poonam Devi (40), Lalita Devi (35), Suruchi (11), Krishna Devi (40), Vijay Sah (15), Neeraj (12), Shanti Devi (40), Pooja Kumari (8), Sangeeta Malik (34), Poonam (34), Mamta Jha (40), Riya Singh (7), Baby Kumari (24) and Manoj (47).
Northern Railway's Chief Public Relations Officer (CPRO) Himanshu Upadhyay said that at the time of incident the Patna-bound Magadh Express was standing at platform number 14 and the New Delhi-Jammu Uttar Sampark Kranti Express was stationed at platform number 15.
"Some people who were coming down from the footover bridge towards platform numbers 14 and 15 using stairs slipped and fell on others," he said, citing the cause of the stampede.
Sources said delays in train departures and the sale of 1,500 general tickets every hour may also have created a chaotic situation at the New Delhi Railway station.