The token currency catastrophe, the Khorasan expedition disaster, and the famines that killed millions — how Muhammad bin Tughlaq single-handedly collapsed India's economy.
The economic history of Muhammad bin Tughlaq's reign is a case study in how a single ruler can destroy a sophisticated medieval economy in the space of a few years. Three policies, interacting with each other and with environmental disaster, created a catastrophe unprecedented in Sultanate history:
In 1326 CE, Muhammad bin Tughlaq conceived an audacious plan to conquer Khorasan (modern Iran/Central Asia) and Khurasan. He assembled an army Barani estimates at 370,000 troops and began preparing for the campaign. This army was equipped, fed, and paid for months at enormous expense from the treasury.
Then the expedition was abandoned — without ever deploying. The entire expenditure was wasted. The treasure accumulated by the Delhi Sultanate over generations was partially depleted in a single campaign that never happened.
This profligate expenditure directly motivated the next catastrophic decision — the token currency experiment — as Muhammad bin Tughlaq sought to replenish the treasury without having the actual silver to do it.
In 1329–1330 CE, Muhammad bin Tughlaq introduced brass and copper tokens as legal tender, declaring them equivalent in value to silver coins. The concept — similar to modern fiat currency — was not inherently wrong. But the implementation was catastrophically flawed:
Barani's account of what followed is one of the most detailed economic catastrophe descriptions in medieval Indian historical literature:
The effects cascaded through every sector of the economy:
When Muhammad bin Tughlaq ultimately reversed the policy, he offered to redeem tokens with silver from the treasury. Predictably, the entire country's stockpile of fake and genuine tokens was presented for redemption, depleting the treasury further. Barani records that the treasury was nearly emptied in the redemption process.
Some historians defend Muhammad bin Tughlaq's currency experiment as "ahead of its time" — anticipating modern fiat currency. This is a false comparison. Modern fiat currency works because of central banking infrastructure, legal frameworks, anti-counterfeiting technology, and institutional trust built over generations. Muhammad bin Tughlaq had none of these. His experiment was not visionary; it was naive to the point of catastrophe.
A prolonged drought struck the Doab — the fertile plain between the Ganges and Yamuna rivers, the agricultural heartland of northern India. Crop failure was severe. The population desperately needed relief from taxation. What they got instead was maintained taxation — enforced at sword-point.
Barani's account identifies Muhammad bin Tughlaq's tax policies as directly exacerbating the famine:
Modern historians estimate that the combined effect of drought, taxation, and the economic chaos of Muhammad bin Tughlaq's policies caused the deaths of hundreds of thousands, possibly millions, in the Doab and surrounding regions. Ibn Batuta, who traveled through the region, describes widespread desolation and depopulation.
K.S. Lal, in his demographic study Growth of Muslim Population in Medieval India (1973), estimates significant population decline in northern India during the Sultanate period, with Muhammad bin Tughlaq's reign among the most damaging periods for Indian population levels.