The Headmaster / Headmistress,
A.B.C. School, Karachi.
Respected Sir/ Madam,
Most respectfully we the students of class X with to request you to arrange an educational trip to Moen-jo-Daro. It will be very useful and will give a lot of Knowledge about the old un realization of Moen-jo-Daro, the customs and way of living of the ancient past.
Please do the needful and ask the concerned persons to arrange this visit soon.