Indian activist Partha Chaudhury is on a war footing as he strides out of the ruling BJP¡¯s regional headquarters in Kolkata armed with passion and pages of voter lists.

¡°We need to meet each and every BJP supporter, and all of this has to be done in less than 300 days,¡± the 39-year-old tells a group of fellow activists advancing into the north of Kolkata, the teeming riverfront capital of West Bengal that¡¯s home to about 15 million people.

¡°We want people to remember that the BJP knocked on their doors much before any opposition party worker did.¡±