Dear Akram, are you aware that Ahmediyas are not even allowed to give call for prayer (Azan) like other Muslims and it is punishable offence in Pakistan? They are not allowed into the mosques of other sects of Islam!
Yesterday's TOI has reported about the tussle between two sects of Muslims in Gujarat about entry into the Mosque.
I have not talked about SC/ST/OBC muslims but about two braod categories viz. Ashraf and Ajlaf.
There are caste differences in all religions, including Hindusim, Islam and Christianity. So rediculing only one of them is meaningless.