1320:
- Ghiyas-ud-din Tughlaq succeeded Nasir-ud-din Khusrau Khan as the Sultan of Delhi.
- Ghiyas-ud-din Tughlaq conquered the fort of Warangal in the Deccan, defeating the Kakatiya dynasty and establishing Tughlaq rule in South India.
1321:
- Ghiyas-ud-din Tughlaq shifted the capital of the Delhi Sultanate from Delhi to Tughlaqpura, a new city he founded near modern-day Delhi.
- Ghiyas-ud-din Tughlaq died in an accident during a siege at the fort of Kampili in present-day Karnataka, and his son Muhammad bin Tughlaq ascended the throne.
1323:
- Muhammad bin Tughlaq launched an unsuccessful campaign against the Raja of Warangal, Pratapa Rudra II, in an attempt to reconquer the Deccan.
1325:
- Muhammad bin Tughlaq undertook a military campaign against the Mongols in Sindh and Punjab, achieving a victory that secured the Delhi Sultanate's northwestern borders.
1327:
- Muhammad bin Tughlaq introduced several administrative and economic reforms, including the imposition of a high land revenue and the debasement of the currency, leading to widespread discontent among his subjects.
1328:
- Ghiyas-ud-din Bahadur Shah, the governor of Bengal under Muhammad bin Tughlaq, declared independence and established the independent Sultanate of Bengal.
1335-1337:
- A major famine occurred in the Delhi Sultanate, causing widespread devastation and leading to numerous rebellions and unrest.
1338-1339:
- Muhammad bin Tughlaq embarked on an unsuccessful military expedition against the Sultan of Hormuz in the Persian Gulf, draining the resources of the Delhi Sultanate.
1340:
- Muhammad bin Tughlaq died without a designated heir, leading to a succession crisis and a period of instability in the Delhi Sultanate.