Dear Editor and Authors,

the manuscript "Modeling of terrain effect in magnetotelluric data from Garhwal Himalaya Region" is an interesting piece of research about possible techniques to correct the distorted magnetotelluric signals produced by topography with application to the Himalayan region.

The paper is essentially well written with good literature coverage and clear introduction, methods and conclusions.

The quality of some figures must be improved because the selection of vertical axes is not always appropriate: some of them contain several subplots; therefore, it is essential that the available space is homogeneously filled with graphs, points, lines and so on.

I checked the calculations reported in the methods. I got the same results, so, they seem to be ok.

A section devoted to "Data availability" is lacking, in which authors should list explicitly the sources where data can be accessed free or after reasonable request. I could not assess the quality

Some periods reported in the manuscript are featured by a suspiciously high number of "significant" digits. Are they correct? Please, check.

I also suggest improving the abstract by providing some additional initial information about magnetotelluric methods and I have also listed a series of really minor mistakes throughout the manuscript.

My detailed comments and requests are highlighted in the attached pdf file.

In summary, I think that the manuscript has one significant weakness concerning quality and accessibility of data, which justifies, overall, in my view, the request of major revision. However, the decision must go to the editor. I also kindly ask the editor to require an additional review to an expert in magnetotelluric data in order to assess their suitability in the contest of the present research.

I thank the editor for allowing me to review this article. My best wishes to the authors.

See the attached file.