Aliens are here! Gog and Magog are back! Quick, build a wall!
Life is out there is a fact of the Qur'an, just do not belittle this Divine Wisdom with psychosomatic ET sightings!
Krishna is not mentioned in the Qur'an as a messenger of God, neither did the Last Messenger have any knowledge outside of the Qur'an to declare him one so we have no proof.
As the Last Messenger gave us Allah's complete and fully detailed Guidance, the Qur'an, then we do not need other religious texts for guidance, but we still respect them, all humanity is worthy of respect and dignity unless the have no respect or dignity.
So follow Qur'an, not vedas.