Ichthyophis sikkimensis
Range
India (Sikkim and West Bengal), Nepal; possibly Bhutan
Ichthyophis sikkimensis, the Sikkimese caecilian or Darjeeling caecilian, is found in India, in Sikkim and West Bengal, and in Nepal, and possibly in Bhutan (Wikipedia, general species account).
The cached account is a single sentence and gives no description or habits.