What are the visa & residency requirements in Dhaka?

"In order to visit Dhaka, visitors must obtain a visa prior to their arrival. The process of applying for a visa involves submitting an application form, providing a valid passport, and paying the applicable visa fee. Depending on the purpose of the visit, additional documents may be required. In order to obtain residency in Dhaka, Bangladesh, applicants must submit an application form, provide a valid passport, and provide proof of employment or other financial resources. Depending on the purpose of the residency, additional documents may be required. Once the application is approved, the applicant will be issued a residency permit," mentioned another expat when asked about moving to Dhaka, Bangladesh.