The latest developments related to the Punjab Police constable exam are that the exam date has been announced.
According to the Economic Times, the Punjab Police constable recruitment exam date has been announced. However, the evidence does not provide the specific date of the exam. It also mentions that the vacancies, admit card update, and key details should be checked.
The Economic Times is the source of this information, but it does not provide further details about the exam. The evidence does not contain information about the exam pattern, syllabus, or other important details.
Therefore, the only confirmed development is that the exam date has been announced, but the specific date is not provided in the evidence.