The event is part of efforts to boost Bangkok's tourism industry as it recovers from the Covid-19 pandemic.

Sa-nga Ruengwattanakul, the president of the Khao San Road Business Association, said on Monday that the event will be jointly organised by the association and Phra Nakhon District Office, Chana Songkhram Police Station and Thai Beverage Plc.

"We've received a lot of help from organisations who are keen to hold a public event on Khao San Road, as social gatherings were banned in the past few years," he said.

This year, a party will be held with the theme "Kiss or Creep", which reflects the playful atmosphere of Khao San Road. A Halloween Costume Contest will be organised with prizes totalling 20,000 baht for the winners.

Those interested, Mr Sa-nga said, can sign up at the venue from 6pm. To get to Khao San Road when the event is underway, patrons must pass through security screening on the corner of Chakrabongse Road or Tanao Road.

Separately, Prime Minister Prayut Chan-o-cha said he was confident that Thailand will see 10 million foreign visitors by the end of the year, according to government spokesman Anucha Burapachaisri.

He said the number of flight bookings to the country's international gateway airports for this year's high season is expected to be 50% higher than numbers seen before the pandemic.