The Calcutta High Court on Thursday allowed the BJP's 'Rath Yatra' programme in West Bengal as it set aside the state government's decision to refuse permission for the rallies over apprehensions of communal unrest, saying courts can interfere if administrative authorities exercise their discretionary powers in a whimsical manner.

While directing the police to deploy adequate force to ensure that there is no breach of law and order, Justice Tapabrata Chakraborty asked the state BJP to inform the superintendents of police of districts where the rallies will enter at least 12 hours ahead of schedule and to ensure that the 'yatras' are conducted by abiding the law and they do not impede movement of vehicular traffic.