Patnaik, who was born to Gyan Patnaik and Biju Patnaik on October 16, 1946 at Cuttack, also attended office as usual and held meetings.
Ministers, MLAs, political leaders, school and college students along with people from different walks of life congratulated Patnaik on the day.
"I am glad that people wished me on the day. I pray God to keep everybody happy in Odisha," Patnaik said.