Read the bellow sentence:
Direct: He said to her,who are you?
Indirect: He asked her who she was.
Direct: They said to me whom do you want?
Indirect: They asked me whom I wanted.
Direct: You said to him ..what is your father?
Indirect: You asked him what his father was.
Direct: I said to them ,how did you go there?
Indirect: I asked them how they had gone there.
Direct: She said to me,why are you making late,?
Indirect: She asked me why I was making.
Direct: He said to us,when were you going?
Indirect: He asked us when we had been going.
Direct: You said to her,where have you gone?
Indirect: You asked her where she had gone.
Direct: subj.+say/say to +obj. ,"Wh-word +aux.verb +subj.+verb+obj.+ext?"
Indirect: subj.+ask+obj+wh-word+changing person of subj. of reported speech +changing tense of (aux.verb+verb)/verb of reported speech+changing person of obj. of reported speech+ext.
Here wh- word (who,whom,where,when,why,how,what) will be the conjunction and the question should be turned into an assertive sentence.person ,tense and adverb will be changed according to person,tense and adverb changing rules.