Ashish - My initial thought was that you were looking at the figure as praying at / near the building. That implied that this was the subject, rather than the building and if this was your intent, your subject is being totally overwhelmed by the structure. If on the other hand the subject is the building, then the figure is just a distraction as it doesn't really add that much to the composition.
I wish there a nice, simple, easy and straight forward answer here, but I'm afraid there isn't and that's why photographers will work a scene, taking the shot from different positions, using different camera settings and different focal lengths. In situations like this shot, the photographer is facing the additional problem of having part of the material that you are shooting is mobile and might be intimidated if you got too close.
If you have ever looked at architectural renderings, where a new building design is produced and shown. The building is rarely shown along, but rather it is shown in a landscaped setting, with people, cars and other "accessories" to make the rendering look less sterile. This might be an approach as well, having these features in the background in a way that the figures complement the image, without overpowering it.
To demonstrate what I am thinking here, I've done this with one of the images I posted from my recent trip to Japan:
Shinkanzen
The people, plants and other devices help give the shot a bit of perspective and life.