Write an application letter to BDO or SDO for a residential certificate.

Hint: An application letter is a letter that is written when you are required to apply for a document or job. BDO is the Block Development Officer and SDO is the State Development officer. A residential certificate uses a certificate that specifies that you are a permanent resident of a state or a city.

Complete answer:
To Date: dd/mm/yyyy
The SDO officer,
XXX office,
Address.
Subject-Request to provide a residential certificate.

Respected sir
     With due respect, I want to inform you that I have been a resident of Haryana for the past 5 years, since 2016. As I need to apply for an esteemed university in Haryana, it is important for me to submit some necessary documents along with my residential certificate.
Hereby, I request you to provide me with a residential certificate as proof that I have been a resident of Haryana. I will be highly obliged for your cooperation.

Thanking you!
Yours sincerely
YYY ( Name of Yours)

Note: An application letter should state only the valid points and should be clear for the reader to perceive. It should also be short in length. The two format of the date that is to be remembered:
Date Month Year (30th April 2021)
Month Date, Year (April 30th, 2021)

The Points to be noted while Writing an Application to the Principal
- Addressing or greeting the appropriate person
- Message subject
- The reason for your letter
- Thank-you gesture
- Signed and dated