The Delhi Sultanate Consolidates

First Battle of Tarain, 1191 — Prithviraj Chauhan, the Chahamana ruler of Ajmer and Delhi, intercepted Muhammad of Ghor's advancing army at Tarain (near modern Taraori, Haryana) after Ghor's forces had captured the frontier fort of Bathinda. Prithviraj's larger and better-coordinated Rajput confederacy inflicted a decisive defeat, wounding Ghor himself, and Prithviraj — in a decision exam-setters love to highlight as a turning point of misplaced chivalry — spared Ghori's life and let him withdraw to Ghazni rather than pressing the advantage further.

Second Battle of Tarain, 1192 — Muhammad of Ghor returned the following year with a reorganised, disciplined mounted-archer army and met Prithviraj Chauhan again on the same battlefield; this time Ghor's superior cavalry tactics broke the Rajput line, Prithviraj was captured and later killed, and his kingdom collapsed. This battle is the conventional marker for the start of Muslim/Turkish rule in North India and, fourteen years later, its winner's slave-general Qutb-ud-din Aibak founded the Delhi Sultanate (1206) after Ghor's death, launching the line of dynasties (Mamluk/Slave, Khalji, Tughlaq, Sayyid, Lodi) that would rule Delhi for the next three centuries.

Memory hook: "Tarain I: mercy. Tarain II: mastery." Same two combatants, opposite outcome, one year apart (1191 → 1192) — the pair is almost always asked together.

Practice Recall: Same two rulers, two battles, one year apart, opposite winners — name the winner of Tarain I and the winner of Tarain II before reading on. ... Answer: Tarain I (1191) → Prithviraj Chauhan; Tarain II (1192) → Muhammad of Ghor.

Battle of Chandawar, 1194 — fresh from Tarain II, Muhammad of Ghor turned east and defeated Jaichand, the Gahadavala ruler of Kannauj, in a battle fought near the Yamuna. Jaichand — remembered in popular legend, somewhat unfairly, as the man whose rivalry with Prithviraj Chauhan invited the Turkish invasion in the first place — was killed, and his defeat secured Turkish control over the entire Ganga-Yamuna Doab, effectively finishing the conquest that Tarain II had started and clearing the path for Sultanate rule across the Gangetic plain.

Battles against the Mongols, 13th–14th century — Sultans Balban, Alauddin Khalji, and Muhammad bin Tughlaq each repelled repeated Mongol invasions launched from the Ilkhanate and Chagatai Khanate into Punjab and the Delhi frontier; no single named battle dominates recall here, but "Delhi Sultanate successfully resisted the Mongols" — in sharp contrast to Baghdad, whose Abbasid Caliphate fell to the Mongols in 1258 — is a standalone fact often tested as a comparative civilisational point, underlining the Sultanate's military resilience even during its most turbulent decades.