Concept:
The locations are:
\[
\begin{aligned}
\text{Gurumahisani} &\rightarrow \text{Odisha (Northern)},
\text{Badampahar} &\rightarrow \text{Odisha},
\text{Bailadila} &\rightarrow \text{Chhattisgarh},
\text{Kudremukh} &\rightarrow \text{Karnataka (Southern)}.
\end{aligned}
\]
Step 1: Arrange from North to South.
\[
\boxed{
\text{Gurumahisani}
\rightarrow
\text{Badampahar}
\rightarrow
\text{Bailadila}
\rightarrow
\text{Kudremukh}
}
\]
Step 2: Convert into letter sequence.
\[
\boxed{
C \rightarrow B \rightarrow D \rightarrow A
}
\]
Hence,
\[
\boxed{\text{(B)}}
\]