The Thai nightclub owners, a father and son, have been charged with causing death through recklessness and operating a pub without a licence.
Forensic samples taken from the victims were being sent to a toxicology laboratory, indicating that police were investigating whether the victims had ingested a poison or toxin.
"We are still investigating the circumstances surrounding the incident," the police chief added. He said the victims were aged between 18 and 20 years.
Police Chief said police believe it was an isolated incident and authorities don't believe there's an ongoing public safety threat.
Speaking to the media, he lambasted leaders of TRS and other parties for criticising Rahul Gandhi over his presence at a night club in Kathmandu, the video of which went viral on social media.
Neymar was pictured at a nightclub in the Paris suburbs attending a private concert held by the American rapper Tyga.
Joe Root's squad left England without vice-captain Stokes who remains at home awaiting the outcome of a police probe into his involvement in a brawl outside a Bristol nightclub on September 25.