• There are six parts in a official/ formal letter. 1. Headline, Date,Designation and Address of the Recipent. 2. Salutation - যেমনঃ dear sir/madam 3.The Body 4. The Subscription ( Yours faithfully,I remain sir) 5.The Signature of The Writer 6. Supscription ( Detailed Designation and Address on the Envelop)