Kolkata, May 14 (ANI): Communist party of India (Marxist) accused the ruling Trinamool Congress of West Bengal of rigging the polls and calls for re-polling at various polling stations in Kolkata city. TMC leaders said on Monday that the media is hyping up a few minor clashes that took place during the last phase of polling between party supporters and the CPI (M) workers. Crude bombs were also hurled at the residence of BJP leader Meena Devi Purohit, in Kolkata city on Monday. However, the bombs did not explode. Hundreds of supporters and leaders of CPI (M) marched on the roads of Kolkata demanding re polling. Incidents of violence were reported at several polling booths and police said at least thirteen people were injured.