The third phase of elections in West Bengal on April 6 will see polling in 31 constituencies of Hooghly, Howrah, and South 24 Parganas districts. Most of these seats have remained loyal to the Trinamool Congress in every format of elections since 2011. In the last Lok Sabha election, the BJP replaced the Left Front to mount a formidable challenge in these seats, much like in the rest of Bengal. Would Mamta able to save her fort? Watch Shankhnad.