Q. I am a carpenter and would like to know if I can build a mandir and make a tomb for non Muslims.
A. Since you are a carpenter and your profession is connected to building, it will be permissible for you to build a mandir and a tomb for non-Muslims, however, seeing that is something that many Muslims do not feel comfortable about, the best is to refrain.
And Allah knows best.
Mufti Waseem Khan