Bangkok Chaengwattana Immigration office. It was recently reported that before the building opens, people are self queuing on the outside. Is this at the main entrance (Soi 7) of the building out-front, or the entrance on the south end closest to the Immigration office itself, or both? Thanks.
TLDR : Answer Summary
At the Bangkok Chaengwattana Immigration office, people are reported to queue outside before the building opens, specifically at the southern entrance door, which is closest to the immigration office. The main building (Complex B) opens at 6 AM, and queueing begins outside at the southern entrance. Once inside, individuals are given a queue number to manage the process.