Shah Mohammad (Punjabi: شاہ محمّد (Shahmukhi); ਸ਼ਾਹ ਮੁਹੰਮਦ (Gurmukhi); 1780–1862), was a Punjabi poet who lived during the reign of Maharaja Ranjit Singh (1780 – 1839) and is best known for his book Jangnama (Book of War) written around 1846, which depicts the First Anglo-Sikh War (1845 – 1846) that took place after the death of Maharaja Ranjit Singh in 1839.

[1][2] It is widely believed by historians that Shah Mohammad had gathered his book material from many eye-witness accounts of his relatives employed in Maharaja Ranjit Singh's army.

That's how he could piece together a complete picture of the battle between the Punjabis and the British.

Therefore, Shah Mohammad's book explains reasons for the fall of Sikh rule in the Punjab.

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