Accountability is best determined by the accountable, not others. And one’s own sense of accountability can include resigning and not resigning. And accepting or not accepting another’s resignation
The government Shastri in particular was criticised in the House by the Opposition over the accident and the handling of the situation. K Ananda Nambiar, an MP from the Communist Party of India, said, “The (Railway) Board and the Ministry are responsible for it (the accident). They must explain, they must quit.”