@PraphullaKoushik Since we talked about suitable top-level tags for questions about stacks (and gerbes), I'll add that stacks are explicitly listed as one of the topics in the ag.algebraic-geometry tag-info.

However, it seems from @DenisNardin's response and @DavidRoberts' edit/retag, that your questions are probably closer to dg.differential-geometry.

(Sorry for bothering you with the pings, but since this user explicitly mentioned that they were unsure which tags to use and you have interacted with them here in chat or on the main site, I thought you might have a reasonable advice.)

Of course, if this is too big digression from the topic of this room, the discussion about this can continue in MO editors' lounge - tagging is one of the main topics there.