Please provide evidence for this so-called kidnapping.
Which report are you talking about? Be specific.
Now if, as you say, there was a kidnapping, why and how was the fire set from inside the compartment? You mean to say that Hindus first kidnapped a girl and then set fire to their own compartment?
Which myth do you want to follow? Please follow only one.
1. Either a Muslim girl was kidnapped and as revenge, pious Muslims burnt 58 Hindus, mostly women and children OR
2. Hindus set fire to the compartment so that they can go and kill Muslims which is their favourite pastime.