Q. When was the military cantonment in Chakrata, Uttarakhand established?
Answer: 1866
Notes: The Chakrata military cantonment was established in 1866 by Colonel Hume of the 55th Regiment. It is situated in Dehradun district, Uttarakhand, between the Tons and Yamuna rivers at 2,118 meters elevation. The cantonment became a permanent Indian Army garrison after independence and serves as a base for intelligence and special forces units.