The fourth phase of assembly elections will be held in West Bengal tomorrow. 49 constituencies spread over North 24 Parganas, Bidhannagar and Howrah districts will go to polls in this phase.<br/><br/>The polling will start at 7 a.m. and will end at 6 p.m. A total of 345 candidates including 40 women are in the fray for this phase. A total of one crore eight thousand voters are eligible to exercise their franchise in this phase. <br/><br/>Election Commission has made unprecedented security arrangements following incidents of violence in the 3rd phase of polling. 90,000 security personnel including central armed forces have been deployed to ensure free and fair polling.