The Gurkhas were, however, driven out by Rana Jagat Singh assisted by Sir David Ochterlony and the British forces during the Gurkha War in 1815–1816.
In between, until Najib-ul-Daula, the governor of Saharanpur, who later founded city of Najibabad, invaded the city with his army of Rohillas in 1757, and ruled here, leading to its wide spread development, though after his death in 1770, it was successively annexed by surrounding tribes of Rajputs, Gujjars, Sikhs and Gurkhas who ruled the region in quick succession, and lead to its steady downfall.
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Finally in 1803, it was annexed by the Gurkhas, who made the king of Garhwal, Pradyuman Shah, flee to Saharanpur, leaving the region to be ruled by an iron fist by the Gurkha king 'BAL BHADRA THAPA'.
The country's leader, Valentine Strasser had begun to organize a force to counterattacks by the RUF rebels and his right-hand man, Major Tarawali had contracted sixty Gurkhas of the GSG (Gurkha Security Guards Limited) to train approximately 160 green troopers that would form the nucleus of the SLCU.