Union Defence Minister Nirmala Sitharaman's husband and Andhra Pradesh government's Communications Advisor Parakala Prabhakar on Tuesday resigned from his post, claiming the Opposition is "using his existence in the government to mock" the government. In a letter to CM Chandrababu Naidu, he wrote, "Today YSRCP chief Jagan Mohan Reddy has...reduced your struggle and commitment. That hurt me a lot."