Garg ji, although here also gills images are missing but fortunately annulus is visible and can be seen growing on dung so growing habit is known.
So this is most likely Panaeolus semiovatus (Bolbitiaceae) I am saying this on basis of my experience also as this species is found growing on horse dung, i have posted its images earlier from Rohtang Pass. Best regards Ashutosh Sharma -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. To unsubscribe from this group and stop receiving emails from it, send an email to indiantreepix+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/indiantreepix/c439f6c1-1093-4987-bb4a-7d68465e1b7a%40googlegroups.com.