plz check short essay plz

[ghai_prince13]

11.3. Write a congratulatory card to the comrade.In occasion of its birthday(its mean greeting of the birthday)

Dear rinku ;

Many happy return of the day. May each moment of the special day be full of joy and cheer for you. May you stay happy all your life through. May you live long and a prorpicious life.all dream that you have dreamt, may come true. Best of luck for your future.
Good bye
Prince

[Anglika]

11.3. Write a congratulatory card to the [a] comrade.In [on the] occasion of its birthday(its mean greeting of the birthday)

Dear Rinku ;

Many happy returns of the day. May each moment of this special day be full of joy and cheer for you. May you stay happy all your life through. May you live a long and a prorpicious [prosperous]life. May all the dreams that you have dreamt come true. Best of luck for your future.
Good bye [you do not need to say this - "With all best wishes" is better]
Prince

You really must not use "it" when referring to a person. A person is he [his] or she [her]. If you are not certain which the person is, you may use "they"[their].