For example, Muslims consider Islam to be the final Universal Religion. And there are several reasons for that. Some of them are mentioned in the Quran itself. Sample these verses:

قُلْ يَا أَيُّهَا النَّاسُ إِنِّي رَسُولُ اللّهِ إِلَيْكُمْ جَمِيعًا

'Say: O people! surely I am the Apostle of Allah to you all'

(Sura Aaraf, verse 158)

وَمَا أَرْسَلْنَاكَ إِلَّا كَافَّةً لِّلنَّاسِ بَشِيرًا وَنَذِيرًا 

وَلَكِنَّ أَكْثَرَ النَّاسِ لَا  يَعْلَمُونَ

'We have not sent you but as a universal (Messenger) to men, giving them glad tidings, and warning them (against sin), but most men understand not.' 

(Sura Saba, verse 28)

If a person accepts Islam, the laws of Islam would be binding upon him and from that very moment he would be expected to follow all rules of Islam. And this law has been the same since the time of the Holy Prophet of Islam (pbuh). Whenever a group of people accepted Islam, they were taught the rules of Islam (prayers etc) and were expected to follow those rules without exception no matter where they resided or which tribe/family they belonged to.

Conclusion

The Baha’i Faith seeks to mislead humanity under the garb of being a Universal religion. Its laws even today are not globally applicable and depending upon its convenience, the UHJ releases edicts from time to time. If the Faith were truly global, then these laws would have been equally applicable to all individuals from the time of Bahaullah itself. Otherwise what this means is that Bahaullah left a legacy of an imperfect, evolving faith to his successors, which debunks the Bahai Faith's claim of being the next progressive link to Islam. Islam as is evident from the Quranic verses was completed and perfected by Allah before the passing away of the Prophet (This day have I perfected for you your religion and completed My favor on you and chosen for you Islam as a religion - Surah Maidah, verse 5).

Having understood this, it is therefore surprising how Tahera Qazvini in Badasht claimed that "Islam was abrogated" that too by the Babi Faith, which was even more incomplete and evolving than the Baha’i Faith. And was only Islam (a religion made perfect by Allah) that was abrogated or even other religions like Christianity and Judaism. Judaism certainly did not (and does not) seem to be abrogated a fact that is evident from the wariness of the Baha’is to spread the Faith among the Jews residing in Israel. And if Judaism is not yet abrogated, then it stands to question how Christianity can be abrogated, since it is a consequence of Judaism and of course Islam abrogated Christianity.

It is also pertinent to note if the Baha’i Faith is more perfect than non-Abrahamic, polytheist faiths like Hinduism and Buddhism. In my interaction with my Hindu and Buddhist friends, especially from countries like India and Sri Lanka, I certainly don't hear of the Baha’i Faith openly suggesting that it has abrogated these religions in their own countries. For that matter it would be interesting to note what the Baha’i Faith has to say to Christians in Rome or the Vatican or to Muslims in the Middle East!

If the Baha’i Faith is Universal, its message should go out unequivocally (and not in dissimulation - taqaiyya) to practioners of all faiths it claims to have abrogated. Else it should come out in the open and declare unequivocally, who is its real target audience. If it's particularly the Muslims, then it should assert as much, and not dilute its call by roping in other faiths which in any case don't seem to meet with the Baha’i approval for full-fledged propagation and conversion.

http://www.bahaiawareness.com