Mr Naidu, 68, was stable and under observation, a senior doctor said.
"Angiography was performed on the vice president which showed narrowing of one of the vessels in his heart and to treat that condition a stent was placed," the doctor said.
He is likely to be discharged on Saturday, the doctor added.
Mr Naidu previously visited the hospital for a "complete body checkup" after he became the vice president in August.
Tests had pointed to some problems related to the heart, following which the procedure was carried out on Friday.