Opposition , When Zaman had taken the throne, he was opposed by many of his brothers, among whom were
Mahmud Shah Durrani and Humayun who had their respective regional zones of influence. To deal with these claims over succession, an election was held in
Kabul over who the next Durrani ruler would be. Abbas Mirza was a running candidate and would have taken the vote if the election was held right after Timur Shah Durrani's death. However with the given time,
Barakzai tribal leaders and Zaman's influence had by then grew, allowing him to receive the popular vote and become the ruler, specifically supported by Chief
Payandah Khan.
Securing the throne Having now been declared King of the
Durrani Empire and recognized by all but his brothers, he led his brothers to Kabul, where he imprisoned his opposing brothers. He implicated a diet to starve his brothers, with a diet of two to three ounces of bread each day, with the effect, the brothers gave in on the sixth day, where they had given in and recognized Zaman Shah as the King of the Durrani Empire. The Princes were then freed but kept under surveillance in the
Bala Hissar, Kabul.
Reforms Zaman Shah had wanted a ministry and cabinet that would be loyal to him and of his people, as a result he had replaced his old ministry and replaced them with loyal
Pashtuns devoted to Zaman Shah, strengthening his position on the throne. Zaman Shah had also led hard campaigns to tie himself to the chiefs who had opposed him in the Kabul election, where in most cases he succeeded, bringing more strength to his rule and throne, to those who did oppose him still as the chiefs, he put them to death.
March on Kandahar against Humayun Zaman Shah, wanting to further secure his throne from the growing popularity of Mahmud Shah in Herat and older brother Humayun in Kandahar wanted to mobilise his army to march on Kandahar to prevent them uniting against his rule. Humayun, disregarded the advice to stay in defense within Kandahar's great walls and wait for Mahmud Shah reinforcements to arrive from Herat, and marched out to meet Zaman Shah's army and was defeated at
Qalati Ghilji and forced to flee to
Baluchistan. With his victory, Zaman Shah, secured Kandahar. Before being able to move against Mahmud Shah in Herat, he had received news of possible rebellion on the outer provinces of the empire, and that his presence was urgently required in Kabul. He signed a truce with Mahmud Shah and returned to Kabul as a result.
Return to Kabul Having then recaptured
Kandahar and being recalled, he had led a reign of terror, seeing his father,
Timur Shah Durrani's implicated systems as too lenient, every person correlating to any influence within the Durrani Empire was watched upon. Zaman Shah also ordered the execution of anybody who opposed him, often leading to massacres within the city to rout out small groups of resistance and opposition. The same
Barakzai tribal leaders, who had led Zaman Shah in effort to consolidate his holdings and capture the throne were deprived of all power, with other chiefs also being arrested, or put to death. The outerlying provinces of the empire, having heard of the news in the capital had led prolific revolts in return, not wanting to meet the same fate as many of the nobles in Kabul; revolts broke out in
Kashmir and Punjab; and
Sindh had severed itself of influence and correlation to the Durrani Empire; and the
Uzbeks had crossed the Oxus.
Second march to Kandahar and Sindh Zaman Shah, now seeing his realm disintegrating, had marched to
Peshawar, where he heard the news of his brother, Humayun, with the assistance of the
Talpur in
Sindh had seized Kandahar. He turned from Peshawar to meet him at
Kandahar. Humayun was betrayed by the Afghans in Kandahar, forcing him to flee again, this time to
Sindh, but then attempted to escape to
Herat in the domain of his brother Mahmud Shah. Humayun was captured with a detachment of horses and ordered by Zaman Shah to be put to death, making sure Kandahar wouldn't be under threat from him once again. Zaman Shah, having been forced to turn his expedition because of the
Talpur had marched on Sindh, enraged and with the ideal of reintegrating the province into the Durrani Empire ever since it started to drift off from his father,
Timur Shah Durrani's reign. When Zaman Shah entered Sindh, he heard the news of his brother, Mahmud Shah had been marching on Kandahar to cut him off from Afghanistan. Zaman Shah had then spared the
Talpur but put under the conditions that they would tribute to the Durrani Empire once again, and confirmed the Talpur chief, Fath Ali Khan. With the Talpur's dealt with, he returned to Kandahar to deal with his brother Mahmud Shah.
Battle with Mahmud Shah Zaman Shah, after dealing with the Talpur, had marched back to Kandahar to prevent Mahmud Shah from seizing the city. Mahmud Shah, having heard the news of his brother returning, took up a position in the Siah-band range and remained there until he heard further news of Zaman Shah's movements. Mahmud Shah had heard his brother was but three marches away from him after leaving Kandahar, and as a result he broke up his armies and moved to the plains, meeting Zaman Shah's army at Gurak Village. The two armies fought, with the fight initially appearing to be a close victory for Mahmud Shah. However, his men finally gave way, leading to a decisive victory for Zaman Shah. Following the battle, Mahmud Shah first fled to
Farah, Afghanistan, then moved to Herat, where, by inciting the Uzbeks to attack, he persuaded Zaman Shah to pardon him, allowing Mahmud Shah to continue his affairs in government.
Dealing with revolts and march to Punjab Zaman Shah was forced to withdraw and prepare an army to invade Khorasan. However, due to Agha Mohammad Khan Qajar's assassination on 17 June 1797,
one of Nader's grandsons had resumed control and declared his independence. == Later Reign ==