Hyderabad: Telangana IT Minister K Taraka Rama Rao (KTR)'s father-in-law Pakala Harinatha Rao passed away on Tuesday night at the age of 72. Pakala Harinatha Rao is father of KTR's wife Shailima. According to the sources, Pakala Harinatha Rao suffered a heart attack on Tuesday evening and his family members immediately shifted him to the AIG Hospitals in Gachibowli. He took his last breath while undergoing treatment in the hospital. After getting the information, Minister KTR and his wife Shailma rushed to the hospital. Sources said that the mortal remains of Harinatha Rao will be shifted to his residence in Raidurgam.