Puranic Gods are not Vedic Gods because the Vedic God is free from form and attributes.+

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As one peeps into the annals of the Indian religious history he finds that some Saints in the past introduced the Puranic Gods. Puranic Gods lack Vedic sanction. There is a clear-cut idea in Vedas and Upanishads that is supposed to be God in actuality.

The mythological Gods and Goddesses with different form and name are being propagated as Vedic Gods by different founders of the Hinduism, 

The religion of the Veda knows no idols. The idols which are worshipped today in the temples are non-Vedic Gods.  All the idols are of the Puranic Gods. Puranic Gods are mythological stories. Mythological stories are a myth. Puranic Gods are not Vedic God. 

Puranic Gods were introduced to form a new belief system from the 2^nd century onwards. It is impossible to accept Puranic Gods as Vedic Gods because the Vedic God is free from form and attributes.

Sage Sankara says: ~ Ataman is Brahman proves that Sage Sankara advocated Vedic idea of God.

Sage Sankara says:~ God is Atman. Nature of Atman or God is Advaita. 

 Thus, the Soul the innermost Self is God. Therefore,    all the Gods with form and attributes are mere imaginations based on the false Self.  Thus, there is adulteration and add-ons in the past, which have to be bifurcated if one wants pure Vedic essence.  

Rig-Veda 1-164-46 and Y.V 32-1:~ clearly mention that God is “One”.

Rig Veda: ~ The Atman is the cause; Atman is the support of all that exists in this universe. May ye never turn away from the Atman, the  Self. May ye never accept another God in place of the Atman nor worship other than the Atman?" (10:48, 5)

Yajur Veda also says: ~ God has no image and His name is Holy.  (32.3)”

Vedas clearly says those who worship visible things, born of the Prakriti, such as the earth, trees, bodies (human and the like), in place of God are enveloped in still greater darkness.

Yajur Veda says: -   Those who worship visible things, born of the Prakriti, such as the earth, trees, bodies (human and the like), in place of God are enveloped in still greater darkness.

The Puranic Gods were introduced by some Sages of the past with a new belief system and code of conduct in the name of Vedas. 

Sruti is made the final or exclusive authority in apara Vidya and for supporting the tenet of the causal relation or creatorship of Brahman, Nirguna Brahman = the "Absolute beyond qualities," which can be defined only in a negative way. For the Sankarian school = the Ultimate Reality, higher than the Lord. i.e. of Saguna or apara Brahman ... The support of Scriptural Revelation is, therefore, absolutely necessary for this hypothesis of cosmology, this Saguna or apara (= inferior) Brahman, but not for the absolute truth of Nirguna Brahman. 

The Sruti itself says:- "This Atma is NOT to be attained by a study of the Vedas.  (Katha Upanishad I, 2, 23.)   

        

Therefore, all the adulterated add-ons and attribute-based knowledge, which are inferior, have to be bifurcated and excluded to know the ultimate truth.  The seeker of truth has to drop all the inferior knowledge based on the attributes and go beyond the Vedas to understand assimilate and realize the ultimate truth or Brahman. 

One has to go beyond Vedas means- go beyond the religion. Going beyond religion means, going beyond the concept of God.  Going beyond Vedas, Religion, and conceptual God is going beyond the illusion.   That is the end of the Vedas (Veda –antha).:~Santthosh Kumaar