At this time, Mosaddeq was the prime minister. Na’matullah Nasiri was really loyal to the king. He was supporting the court when there was a disagreement between government and the court.

     Nasiri got married twice. First when he was the commander of the kingdom guard, he got married with Parvin Khajavi whose mother was German. They divorced after several years. Second, he got married with Colonel Khalvati’s young daughter called Zoleykha. They had two sons. This marriage lasted to the end of Nasiri’s life. After Nasiri was executed, Zoleykha got married twice.

     During Pahlavi regime, Nasiri received dozens of interior and exterior medals. The initiation of Imam Khomeyni’s movement was concid with his chairmanship of police. He played an important role in oppressing the disagreements. The king was satisfied with his functions. So, after Hassan Ali Mansour assassination, the king introduced him as the chairman of SAVAK instead of Pakrawan. SAVAK became more hateful during the chairmanship of Nasiri. He wasn’t lenient with the opposed people at all. The common committee of anti-sabotage was established during his chairmanship in 1350. One of the main events happened during his chairmanship on SAVAK was Bakhtiyar’s murder, the first SAVAK chairman, in Iraq. Nasiri recorded this event as his record and was granted general degree.

     One of the features of Nasir was financial sedition extensively. It’s said that Nasiri didn’t have any worry but accumulating wealth. His office in SAVAK had openly turned into a center for his great economic transactions. His wealth exceeded one hundred million Tumans. At the end years of Pahlavi regime, Nasiri transferred the greatest part of his wealth to foreign countries. Ashraf Pahlavi, the king’s sister, was in touch with Nasiri till the end of his chairmanship on SAVAK and supported him.

     On Khordad 15, 1357, the king deposed Nasiri and appointed the lieutenant general Naser Mqaddam as the chairman of SAVAK.

     For a short period of time after deposing, Nasiri became the Iranian ambassador in Pakistan.

     Finally on Bahman 26, 1357 was executed by the revolutionary troops.