Dear [Name of Recipient],
Through this letter, I wish to notify that your request for organizing an [name of event] on the occasion of [name of occasion] is approved to be held from [start date] to [end date]. I appreciate your efforts of systematizing this event which will surely be a grand success as it involves the participation of you and your group. Your application has been selected among the several organizers due the outstanding track records. Please make sure to execute this event as per the prescribed rules and regulations.
As per your request, the event will involve an attendance of [number of members to take part] at [name of place where event is to be held]. It is for your information that all other events have been cancelled giving your event the utmost priority. As a part of social and professional decorum, please maintain the minimum decency in organizing the event.
If you need to make any changes related to the event, you are welcomed to visit our office at [name of place] in person during 8:00 AM to 5:00 PM [time zone] Monday to Saturday. Wish you a grand success for this event.
[Name of Sender]