Q:

Kannan said to Subha. "I'll return the book after I have read it". 

• 1
  Kannan told Subha that he will return the book after he has read it.
• 2
  Kannan told Subha that he would return the book after he has read it.
• 3
  Kannan told Subha that he will return the book after he read it.
• 4
  Kannan told Subha that he would return the book after he had read it.