Overview
In 1299, a Mongol army led by Qutlugh Khwaja reached Kili, roughly 10 kilometres from the suburbs of Delhi. Its objective was not simply to raid the countryside. The invaders intended to conquer the Delhi Sultanate and establish Mongol rule in India. Sultan Alauddin Khalji therefore brought his army out from its camp near Siri to confront a threat that had already crossed the Indus and advanced deep into northern India.
The battle produced no clear battlefield triumph for either side in the conventional sense. Zafar Khan, one of Alauddin's generals, launched an unauthorized attack against the Mongol left wing and was killed after being isolated and surrounded. Yet the Mongols did not capture Delhi. After several days near Kili, they withdrew towards their homeland. Later historians have explained this retreat differently: the chronicler Ziauddin Barani connected it to the fear caused by Zafar Khan's attack, while the modern historian Peter Jackson has suggested that Qutlugh Khwaja's grave injury, followed by his death during the return journey, was decisive.
The encounter was important because it tested the Delhi Sultanate against a full-scale Mongol invasion at the very gates of its capital. Delhi survived, but the battle also revealed the dangers of indiscipline within a large army facing highly mobile cavalry forces.
Background
The Delhi Sultanate was ruled by Alauddin Khalji, who had seized the throne in 1296 after assassinating his uncle, Jalaluddin Khalji. His reign began during a period of repeated Mongol pressure from Central Asia and Afghanistan. The Chagatai Khanate, ruled by Duwa Khan since the 1280s, was active in the region and sought to extend its authority into India.
An earlier Mongol incursion had taken place in 1292, when Abdullah, the Negudari governor, invaded Punjab. His advance guard, commanded by Ulghu, was defeated and captured by Jalaluddin Khalji. Around 4,000 Mongol soldiers who surrendered converted to Islam and were settled in a suburb of Delhi known as Mughalpura.
Mongol forces were defeated by the Delhi Sultanate several times in 1296–97. During Alauddin's reign, the Mongol commander Kadar raided Punjab in the winter of 1297–98, but Alauddin's general Ulugh Khan defeated him and forced his withdrawal. A further invasion under Saldi was stopped by Zafar Khan. These defeats did not end Mongol ambitions. Instead, the Chagatai leadership prepared a larger campaign intended to conquer rather than merely plunder northern India.
Prelude
In late 1299, Duwa Khan sent his son Qutlugh Khwaja towards Delhi. The Mongol army spent approximately six months marching towards India. During this advance, it avoided plundering cities and destroying forts, apparently conserving its strength and supplies for the expected battle at Delhi. Delhi generals stationed at frontier posts such as Multan and Samana harassed the Mongols at night, but the invaders avoided decisive engagements with them.
Zafar Khan, who was stationed at Kuhram, sent a messenger challenging Qutlugh Khwaja to battle. The Mongol leader refused, saying that kings fought kings. He invited Zafar Khan to meet him under the banner of his sovereign, Alauddin, at Delhi.
When the Mongols reached Kili, people from surrounding areas began seeking safety inside the fortified city. Delhi's streets, markets, and mosques became crowded. Merchant caravans were interrupted, and commodity prices rose sharply, placing additional pressure on the inhabitants.
Alauddin appears to have learned of the invasion only after the Mongols had crossed the Indus. The fourteenth-century chronicler Isami stated that the sultan had just one or two weeks to prepare. Alauddin sent orders to provincial governors for reinforcements and established a military camp near Siri, on the banks of the Yamuna.
His uncle and kotwal of Delhi, Alaul Mulk, advised negotiation rather than risking the kingdom in battle. Alauddin rejected the proposal. He believed that retreat or apparent weakness would damage his authority among both the public and the army. He announced his intention to march to Kili.
Before leaving, Alauddin placed Alaul Mulk in charge of Delhi and instructed him to hand the palace keys to the victor. Alaul Mulk closed every gate except the Badaun Gate, which remained open as a possible route towards the Doab if the battle went badly.
The Event
The battlefield at Kili was bordered by the Yamuna on one side and bushland on the other. Alauddin's army was spread across several miles, making central control difficult. To prevent individual commanders from moving independently, the sultan issued a strict order: no officer was to leave his position without permission, with beheading prescribed as the punishment for disobedience.
The Delhi army was arranged in several divisions. Nusrat Khan commanded the left wing. Zafar Khan, supported by Hindu warriors, commanded the right. Alauddin held the centre. Akat Khan's unit stood in front of the centre, while Ulugh Khan's force was placed behind Nusrat Khan as a reserve. Twenty elephants stood before each division as a protective buffer against Mongol attacks.
The Mongol army was also divided into major formations. Hijlak commanded the left wing, Tamar Bugha the right, and Qutlugh Khwaja the centre. A force of 10,000 soldiers under Targhi waited in ambush. Other Mongol officers included Isakilba, Kijya, and Utna.
Before the fighting, Qutlugh Khwaja sent four envoys to Alauddin. They claimed that such an army had never before appeared in Hindustan and asked to inspect the Delhi camp and learn the names of its principal officers. Alauddin permitted them to do so. The envoys returned and reported their observations to the Mongol commander.
Key Phases
Alauddin preferred to delay the main engagement. Reinforcements were still expected from the east, and he hoped that the Mongols, already tired from their long march, would face shortages of provisions. The sultan's plan was therefore defensive and cautious.
Zafar Khan disrupted this plan. Without Alauddin's permission, he attacked Hijlak's division. The Mongols responded with a feigned retreat, a tactic designed to draw an enemy formation away from its supporting troops.
Zafar Khan pursued rapidly. His infantry fell behind, and even his cavalry struggled to maintain the pace. After travelling 18 karohs, approximately 55 kilometres, he discovered that only about 1,000 horsemen remained with him. At the same time, Targhi's Mongol unit had moved behind him and blocked his route back to Alauddin's camp.
Zafar Khan and his officers understood that they were isolated. The officers named in the account of this episode included Usman Akhur-beg, Usman Yaghan, and Ali Shah Rana-i-Pil. They concluded that a return was impossible. They also feared punishment for violating Alauddin's orders and for appearing to retreat. They chose to continue fighting.
According to Barani, Qutlugh Khwaja offered Zafar Khan the chance to surrender and promised him honourable treatment in the Chagatai Khanate. Zafar Khan refused.
Isami stated that Zafar Khan and his companions killed 5,000 Mongols while losing 800 men. After this engagement, approximately 200 of Zafar Khan's soldiers remained. His horse was cut down, but he continued fighting on foot. He engaged Hijlak in close combat and was eventually killed when an arrow passed through his armour and pierced his heart.
Turning Points
Zafar Khan's attack was the battle's clearest turning point. His advance inflicted serious losses on the Mongol force, but it also removed his division from the protection of the main Delhi army. Alauddin did not send a unit to support him. A later account by Hajiuddabir attributed this failure to hostility between Ulugh Khan and Zafar Khan, although this explanation belongs to a much later historical narrative.
Zafar Khan's son, Diler Khan, subsequently charged the Mongols and forced Tamar Bugha to fall back. He pursued the retreating soldiers, who answered with volleys of arrows. The Mongols also attacked the centre of the Delhi army, but Alauddin's division repulsed the assault and inflicted heavy losses.
Zafar Khan's death caused dismay among the Delhi officers. The following morning, they advised Alauddin to withdraw into Delhi and continue the struggle from the security of the fortifications. Alauddin rejected their proposal. He argued that Zafar Khan's troops had suffered because they had disobeyed orders, and declared that if he moved, he would move forward rather than retreat.
Despite this determination, Qutlugh Khwaja did not launch another major attack. The second day ended without decisive action. The third day also passed without a major engagement. That night, the Mongols began their retreat.
Participants
The Delhi Sultanate
Alauddin Khalji commanded the Delhi army from the centre. His principal concern was to prevent the Mongols from reaching and taking Delhi while preserving the cohesion of a force deployed over a wide area. His decision to delay the engagement reflected the expectation that reinforcements would arrive and that Mongol supplies would diminish.
Zafar Khan was the most aggressive Delhi commander. His independent attack caused severe Mongol casualties but led to his isolation and death. Diler Khan continued the fight after his father's fall. Other commanders included Nusrat Khan, Ulugh Khan, Akat Khan, and Hizabruddin Zafar Khan.
The Chagatai Mongols
Qutlugh Khwaja, the son of Duwa Khan, led the invasion. The army was structured around mobile divisions commanded by Hijlak, Tamar Bugha, and Targhi. Its use of a feigned retreat followed by an ambush was central to the destruction of Zafar Khan's isolated force.
The Mongols had marched for months and had deliberately avoided major confrontations before reaching Delhi. Their objective was to conquer and govern the Sultanate, but after remaining near Kili for several days, they abandoned the campaign and returned towards Central Asia.
Aftermath
Alauddin allowed the Mongols to withdraw safely and then returned to Delhi. Although Zafar Khan had fought with great determination, the sultan did not honour him publicly. Alauddin regarded his attack as a serious act of disobedience that had endangered the army's position.
Zafar Khan's name was omitted from royal chronicles produced during Alauddin's reign. Amir Khusrau's Khazain-ul-Futuh, for example, did not mention him. The episode therefore produced a striking contrast between military courage and royal approval: a commander could inflict heavy losses on an enemy and still be condemned for violating the sovereign's orders.
The Mongol retreat did not end the threat. Mongol armies invaded India again in 1303, 1305, and 1306, but failed to defeat the Delhi Sultanate's forces.
Historical Significance
The Battle of Kili preserved Delhi from a campaign designed to conquer it. Its significance lies less in a simple Delhi victory than in the failure of a major Chagatai invasion to achieve its political objective. The Mongols reached the capital's vicinity, yet they neither captured Delhi nor compelled Alauddin to submit.
The battle also exposed the tactical tension between centralized command and independent initiative. Alauddin's army was so extensive that controlling it centrally was difficult, which explains his severe order against unauthorized movement. Zafar Khan's attack demonstrated both the potential and the danger of aggressive cavalry action. His pursuit inflicted heavy losses but allowed the Mongols to isolate his force.
The scale of the armies remains uncertain. Barani gave Mongol numbers of 100,000 in one passage and 200,000 in another. Firishta later claimed that Alauddin had 300,000 horsemen and 2,700 elephants, but Kishori Saran Lal considered this figure inflated. Alexander Mikaberidze estimated approximately 100,000 Mongols and about 30,000 soldiers in Alauddin's army. These disagreements make precise casualty totals impossible.
Legacy
The surviving accounts remember Kili through the contrasting figures of Qutlugh Khwaja, Alauddin Khalji, and Zafar Khan. Zafar Khan's final stand became an example of battlefield courage, even though the royal court treated his conduct as reckless disobedience. The battle also occupies an important place in the sequence of Mongol invasions that challenged the Delhi Sultanate at the end of the thirteenth and beginning of the fourteenth centuries.
Its immediate legacy was political survival. Delhi remained in Alauddin's hands, and the Sultanate continued to resist further Mongol attacks. The later invasions of 1303, 1305, and 1306 show that Kili was not the end of the conflict, but it was a major failure for the first Mongol attempt to conquer Delhi.
Historiography
Medieval writers differed in how they explained the battle. Isami supplied figures for the troops and casualties involved in Zafar Khan's engagement, while Barani emphasized the fear allegedly produced among the Mongols by Zafar Khan's attack. Their accounts also preserve the episode of Qutlugh Khwaja offering Zafar Khan the chance to surrender.
Modern historians have questioned the large army figures found in later chronicles. Banarsi Prasad Saksena argued that the Mongols would have faced serious difficulties provisioning an army of 200,000 during its march to India. Kishori Saran Lal similarly regarded Firishta's figures for Alauddin's forces as exaggerated.
The reason for the Mongol withdrawal remains debated. Barani's interpretation presents Zafar Khan's resistance as the cause of Mongol alarm. Peter Jackson has instead suggested that Qutlugh Khwaja was gravely wounded and died during the return journey. The retreat may therefore be understood through both the battlefield pressure created by the Delhi army and the condition of the Mongol commander.