Writing a formal letter is an art because it is in much demand these days. Some examples are official letter format for request sometimes it is official letter format to government, and you may have to write letter to organization for different purposesand it may be formal letter example application for a job.
For a Loan
Karnal Housing Board,
I am an employee of the State PWD (Roads) and wish to construct a house for myself.
For this I request a loan of Rs. 2,50,000 (Rupees two lakh fifty thousand only) to construct MIG (Middle Income Group) flat on a plot of land I own in the Lake area of Karnal.
I am enclosing a demand draft of Rs. 20 towards an application form which may kindly be sent immediately.
Bir Kishen Walia.