A christian girl wants to marry a hindu boy in protestant church in india without conversion of the boy.Is this possible in any church in india?

No it's not, any church will require that both of them are baptized.

Better get civil marriage done and if you want christine style wedding then u can do outside church at any place. With same rituals without any conversion. Remember ritesh - genelia wedding they got married christine style outside chruch without any conversion for him.