Ved Prakash Upaddhay
"There is a section for this Purana (Bhavishya Purana) called Kalki Purana, which touched upon Kalki Avatar, (Avatar that comes in the Kali time, or the last time) and what came in this Purana was the reality of Muhammad only, when one of their scholars (Ved Prakash Upaddhay) admitted that there is no Kalki Avatar except Muhammad and he mentioned evidence for that from this book, and claimed that it only applies to it, except that the Hindus differed in accepting this part of the book, and they said that it was plagiarized and it was developed by the later and it was included in the book at a very late time." Zakaria also criticized the book, saying that Narasangsha is described in verse 127 of the 20th volume of the Atharveda as Kalki which is not the main body of the Atharvaveda, he said that it is an anticipatory portion (Prakshipta Angsha or later interpolation) and subsequent connections, and claimed that prophecies of the Prophet Muhammad in Hindu scriptures were used by Hindus to make their scriptures acceptable to Muslims, which is a clever attempt, beginning with Akbar's reign to flatter Emperor Akbar by writing the Allopanishad, he claims that the Bhavishya Purana is completely fabricated and man-made with Hindu references. He says that Hinduism has a habit of adding everything in it's religion they got outside in the name of their own religion fabricatedly to attract people to come into their religion, this is also a result of that. In addition, all Hindu scriptures, including the Vedas, are claimed to be adaptations of the beliefs of the migrated Japhethite Aryans (Zoroastrians and Rigvedians), indigenous Hemite Dravidians, and other Indo-Europian classical mythologies along with the influence of monotheism taken from Avestan concept of Ahura Mazda influenced by the geographically adjacent Arabian Semitic people, and says that since the Hindu texts do not "truely" contain the original Abrahamic monotheism of God or Allah, it is in neither consistent with the original tenets of Islam, nor these are original divine books, rather the pagan Advaita Vedanta philosophy, which developed the concept of Wahdat al-Wujud or Sufism in the name of Islam, arose. And as Hinduism established itself as an  absorbing, inclusive, conformist and syncretistic doctrine from the Islamic point of view, as it has no spacific Aqida or Creed, according to Mahatma Gandhi, he claimed that, all Hindu scriptures are not inspired but man-made Aryan literature and the theory that this book attributed Kalki to Muhammad was a false and deceitful attempt.