In this practical and materialistic age, any attempt to support Religious beliefs and that too through Scientific documentary evidence is a difficult task. The dichotomy between Science and Religion is so complete that writers on the Religions generally confine their attention to scriptures, history, rituals, practices or places of worship. Very few of them try to Bridge the gap. Yet in Writing 'Religion 21 Century', the authors have attempted this venture. They strongly revere the claim of all religions that we survive bodily death. In support, intensive and extensive scientific evidence has been adduced. The authors maintain that during 21 century mankind is going to accept as fact, the phenomenon of Reincarnation and that the thinking will shift to 'Man is immortal' from the so far stubbornly held belief 'Man is mortal'.