Hours after Chief Minister Mamata Banerjee urged her party to guard the EVM strong rooms , there was high drama in Kolkata Thursday night as TMC candidates Kunal Ghosh and Shashi Panja and workers alleged EVM tampering and sat on a dharna at the Khudiram Anushilan Kendra near Netaji Indoor Stadium. BJP candidates too rushed to the spot. Banerjee, meanwhile, reached the Sakhawat Memorial Girls High School, a strong room for EVMs from her constituency Bhabanipur, at 8.15 pm and remained there until midnight. Workers of both the TMC and BJP gathered outside the school and there was heavy police deployment there. Banerjee later said: “I have requested that candidates and election agents be given proper facilities. I was here for four hours. I was here to keep a vigil. Our EVMs are here. At the Netaji Indoor Stadium, we have seen EVMs being opened. So I visited here because I wanted to check. Initially, they stopped us. But later, the RO (returning officer) allowed me to enter.…