Question

Sita said to rama did you write a book change into positive sentence​

Answer 1

Answer:

Sita asked Rama if he wrote a book.

Answer 2

Answer:

See Explanation because your Question is Already in positive form.

Explanation:

Sita said to Rama, "Did you write a book ?" -- Punctuation

Indirect Form - Sita asked Rama if he had written a book.

Negative - Sita said to Rama , " Didn't you write a book ?"

I have just assumed the question and had given answer. As you have asked me for positive form and the question is already in positive form.