Question: Can someone whose soul was in hell go to Heaven?
Sri Chinmoy: The usual process is that first he has to go to earth and do good things. But hell is only a portion of the vital world, so from there it is possible to go directly to Heaven. If they get direct help from the Supreme or from a spiritual Master, some souls can go from hell to Heaven. Otherwise, they have to come back to earth and acquire spiritual merits.
Sri Chinmoy, The soul and the process of reincarnation, Agni Press, 1977