Humāyūn of India

Humāyūn’s rule began badly with his invasion of the Hindu principality of Kalinjar in Bundelkhand, which he failed to subdue. Next he became entangled in a quarrel with Sher (or Shīr) Khan (later Sher Shah of Sūr, founder of the Sūr dynasty), the new leader of the Afghans in the east, by unsuccessfully besieging the fortress of Chunar (1532). Thereafter he conquered Malwa and Gujarat, but he could not hold them. Leaving the fortress of Chunar unconquered on the way, Humāyūn proceeded to Bengal to assist Sultan Maḥmūd of that province against Sher Khan. He lost touch with Delhi and Agra, and, because his brother Hindal began to openly behave like an independent ruler at Agra, he was obliged to leave Gaur, the capital of Bengal. Negotiations with Sher Khan fell through, and the latter forced Humāyūn to fight a battle at Chausa, 10 miles southwest of Buxar (Baksar; June 26, 1539), in which Humāyūn was defeated. He did not feel strong enough to defend Agra, and he retreated to Bilgram near Kannauj, where he fought his last battle with Sher Khan, who had now assumed the title of shah. Humāyūn was again defeated and was compelled to retreat to Lahore; he then fled from Lahore to the Sindh (or Sind) region, from Sindh to Rajputana, and from Rajputana back to Sindh. Not feeling secure even in Sindh, he fled (July 1543) to Iran to seek military assistance from its ruler, the Ṣafavid Shah Ṭahmāsp I. The shah agreed to assist him with an army on the condition that Humāyūn become a Shiʿi Muslim and return Kandahār, an important frontier town and commercial centre, to Iran in the event of his successful acquisition of that fortress.

Humāyūn had no answer to the political and military skill of Sher Shah and had to fight simultaneously on the southern borders to check the sultan of Gujarat, a refuge of the rebel Mughals. Humāyūn’s failure, however, was attributable to inherent flaws in the early Mughal political organization. The armed clans of his nobility owed their first allegiance to their respective chiefs. These chiefs, together with almost all the male members of the royal family, had a claim to sovereignty. There was thus always a lurking fear of the emergence of another centre of power, at least under one or the other of his brothers. Humāyūn also fought against the heavy odds of his opponents’ rapport with the locality.

Sher Shah and his successors

During Humāyūn’s exile Sher Shah established a vast and powerful empire and strengthened it with a wise system of administration. He carried out a new and equitable revenue settlement, greatly improved the administration of the districts and the parganas (groups of villages), reformed the currency, encouraged trade and commerce, improved communication, and administered impartial justice.

Sher Shah died during the siege of Kalinjar (May 1545) and was succeeded by his son Islam Shah (ruled 1545–53). Islam Shah, preeminently a soldier, was less successful as a ruler than his father. Palace intrigues and insurrections marred his reign. On his death his young son, Fīrūz, came to the Sūr throne but was murdered by his own maternal uncle, and subsequently the empire fractured into several parts.

Restoration of Humāyūn

After his return to Kabul from Iran, Humāyūn watched the situation in India. He had been preparing since the death of Islam Shah to recover his throne. Following the capture of Kandahār and Kabul from his brothers, he had reasserted his unique royal position and assembled his own nobles. In December 1554 he crossed the Indus River and marched to Lahore, which he captured without opposition the following February. Humāyūn occupied Sirhind and captured Delhi and Agra in July 1555. He thus regained the throne of Delhi after an interval of 12 years, but he did not live long enough to recover the whole of the lost empire; he died as the result of an accident in Shermandal in Delhi (January 1556). His death was concealed for about a fortnight to enable the peaceful accession of his son Akbar, who was away at the time in the Punjab.