He said to me, "Do read the holy Quran daily."

A He asked to me to read the holy Quran daily.

B He asked me to do read the holy Quran daily.

C He asked me to read the holy Quran daily.

D He requested me to read the holy Quran daily.

Correct Answer: Option C

We remove "do" in the imperative sentences starting with "do".But if "do" is acting like a verb then we do not remove "do"

Example : He said to me, "Do this work on priority."

Answer: He asked me to do that work on priority. In above example "do" is acting as a verb so we did not remove it.