Marmots are large squirrels. Found in mountainous range;  Himalayan range in India.

Fast facts from Nat Geo:

Type: Mammal
Diet: Herbivore
Size: Head and body, 17.75 to 24 in (45 to 61 cm); tail, 7 to 9.75 in (18 to 25 cm)
Weight: 13 lbs (6 kg)

Also called as Groundhogs or woodchucks. Read more at Nat Geo

Photo taken at: Pangong Tso, Ladakh