Chariots of the Gods
Erinnerungen an die Zukunft (original)
Based on Erich Von Daniken's book purporting to prove that throughout history aliens have visited earth.
Starring Heinz-Detlev Bock, Erich von Däniken
It's a documentary and mystery movie, and has a rating of 6.2 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from India.