India, March 28 -- The poll battle in West Bengal is heating up with chief minister Mamata Banerjee accusing the Bharatiya Janata Party of instigating riots in the state and home minister Amit Shah slamming the Trinamool Congress for making special intensive revision (SIR) of electoral rolls "such a massive issue".

Leaders of both the parties exchanged barbs on Saturday, March 28, in run up to the state assembly polls in West Bengal slated to place in April.

Amit Shah, while speaking in Kolkata on Saturday, said that the exercise of SIR was conducted across the country but nowhere else did judicial officers have to be deployed except in West Bengal.

Addressing the people of Bengal, Shah asked "whether infiltrators who have been kept he...