Can Person Other Than Mumin Enter Paradise?
A believer whether he is a Muslim believer or a non-Muslims believer in other faith will be dealt on the same grounds. They are required to believe in what they believe consciously, and do the good deeds according to their conscience. Their test is to surrender themselves to truth whenever it appears before them and they get convinces that this is truth. if a truth like Islam never comes to them or they could fail to be convinced with complete sincerity (although it usually does not happen) and they believe with sincerity what they believe is true after they have exerted to know the truth, they are eligible to go to heaven. See Surah Maida verses 116-120.