ANSWER:

This is not permissible as such places are shrines of shirk where people come to worship the deceased and ask them for their needs. 

Is it permissable to visit darga ,and it’s not permissable to build it self , I know it shirk to go there , but still maulana here go there , they say we go there not to do anything but pray for them and look the interior, Like Haji Ali in Mumbai and khaja garib nawaz in Ajmer.

Shirk and its different forms |