Dasia subcaerulea
Habitat
Hills, about 1,100–5,900 feet (335–1,800m)
Range
Western Ghats of south India: Madurai district, Kerala and Tamil Nadu
Boulenger's dasia, or Boulenger's tree skink, is a tree skink endemic to the Western Ghats in south India (Wikipedia, general species account).
The Reptile Database lists Madurai district, Kerala and Tamil Nadu, at about 1,100 to 5,900 feet. The account used here gives no further detail.