Abstract: Goerss-Hopkins-Miller theorem gives us a way of extracting homotopic information hidden inside the Moduli Stack of Elliptic curves by constructing an ́etale presheaf of E∞-ring spectra. Evaluating the presheaf on some particular Modular curves produces TMF with level structure. This presheaf is not only defined on ́etale sites of the Moduli Stack of Elliptic curves but also on Moduli Stack of generalized Elliptic curves but unfortunately the modular curves in this case are no longer ́etale over this stack. So, the presheaf can no longer be evaluated on these modular curves. But, it turns out that by refining the topology on this stack one can define a presheaf which not only produces the universal object, Tmf , but also produces a functorial family of objects, Tmf with level structures, which are the analogs of TMF with level structures. In this talk I will state this result and try to explain this refinement. Please email vb8 at illinois dot edu for the zoom details.