Kolkata, May 2 -- The Election Commission of India (ECI) on Friday further intensified the security outside strongrooms after a ruckus broke out between the ruling Trinamool Congress (TMC) and the Bharatiya Janata Party (BJP) over allegations of EVM tampering and security being compromised in strongrooms, on Thursday night. Additional forces were deployed to reinforce the three-layer security system comprising state police and Central Armed Police Forces (CAPF), while iron guardrails were installed to further fortify the strongrooms, officials aware of the developments said. "Security has been further strengthened outside the strongrooms. Additional forces have been deployed. Only authorised personnel, including political candidates and the...