Fun story, I picked this book without reading the blurb, thinking it is about giant monsters guarding a secret on Meru parvat. I mistook Meru for Mainak (the one Hanuman crossed on the way to Lanka). Also, for some weird reason, I remember the cover containing a Godzilla like figure. So, imagine my surprise when the book opens with a guy injured by crows (after the prologue). Then I looked at the cover of my kindle book, only to realize that the image is that of a mountain and crows (an apt one).
The book was kind of a drag initially. I had to push myself for the first ~35%. It picked up pace after that. There were a lot of characters with their own motives. The author took his sweet time to bring them all together. Until the plot crossed the Wall, I felt as uncomfortable a city-dweller in a remote village. It was a whole different story beyond the Wall. And then there were crows. They would make excellent spies if not for the language barrier. I wish there was more background on Merukaaks. The ending kinda seemed abrupt. What did Gora wish for? How did Kaaks react? How did the antagonist react? What happened to Kadpi after that?
One last complaint is the use of slightly confusing names: Varun and Vaari, Gora and Gora sahibs, Guru and The Guru.
I would go with 3.5*. With a benefit-of-doubt, that's a 4.