Opinion: It could be good or bad. It depends on what is in place of it.
Opinion: It wouldn't be much different than the place it is today (for better or worse).
The only difference is that people will not preach about their religion, nor will there be prayers, mentioning of God, or debate over who is right about the afterlife and so on.
However, there will still be racism, sexism, murder, rape, corruption in politics and the human mind over all, discrimination, people arguing over who's right about which lifestyle suits who the best, child abuse, abusive partners, animal abuse, people being denied rights, and so on. There will still likely be compassion, joy, mercy, righteousness, love, equality, tolerance, and so on.
For some, their religion only compounds any of the above and justifies it, but for others, their religion combats any of the above and keeps it at bay so that others haven't a chance to experience it. Without it, there would be one less thing to play a part in or being used for repelling bad or good, or enhancing good or bad.
to maintain "civilization" yes would be the answer. --civilization: a place with order.
religion in ancient civilization could be accurate but if there was a way to find out more people would have tried a long time ago.
Harappan civilization is more ancient than the Aryan civilization. Definitely they would have practiced a different religion than the vedic Hindu religion. It is similar to the Sumerian civilization. One cannot find out the religion practised by them as no texts are available. Any speculation can only be a guess.
Hinduism and Jainism were the religions of Indus valley civilization.
no one would want to live there except the people with the allowed religion
Religion would become corruted.
Hindu's religion has come from Indus civilization.
There is more than one Vedic religion, which refers to religions that emerged in India. This would include Hinduism and Buddhism. Aryan
Civilization III happened in 2001.
Civilization Revolution happened in 2008.
Civilization II happened in 1996.
Civilization IV happened in 2005.