Change the narration: She said to Hyder, "I went to Islamabad last week".

She told Hyder that she had gone to Islamabad the previous week.

She told Hyder that she went to Islamabad the previous week.

She told Hyder she had went to Islamabad the last week.

None of these

She told Hyder that she had gone to Islamabad the previous week.

"Said to" changes to "told", and the pronoun "I" changes to "she".

"Went" (past simple) changes to "had gone" (past perfect) in indirect speech.

"Last week" becomes "the previous week."