1st Regiment of Bengal Native Infantry

• 1757 formed at Calcutta as the "Lal Pultan"^[1] (Red Battalion) ranked as 1st Battalion
• 1763 named Galliez Battalion after Captain Primrose Galliez
• 1764 Patna Mutiny
• 1764 ranked 9th (Galliez) Battalion
• 1765 posted to the 3rd Brigade
• 1775 became 16th Battalion
• 1781 became 10th Regiment of Bengal Native Infantry
• 1784 became 17th Regiment of Bengal Native Infantry
• 1786 became 17th Battalion of Bengal Native Infantry
• 1796 became 2nd Battalion 12th Regiment of Bengal Native Infantry
• 1824 became 1st Regiment of Bengal Native Infantry
• 1857 mutinied at Cawnpore^[2]

In 1861, after the mutiny, the title was given to the 21st Bengal Native Infantry which later became the 1st Regiment of Brahman Infantry.^[3]