The day began with repolling in 15 booths in West Bengal's Diamond Harbour and Magrahat Paschim, following EVM tampering allegations. By morning, the Supreme Court rejected TMC's challenge against central government employees as counting staff, a setback for Mamata Banerjee. Clashes between TMC and BJP workers erupted in Falta, leading to protests and lathi charges. In the evening, the Election Commission escalated dramatically, ordering repolling in all 285 booths of Falta constituency on May 21, citing subversion of the democratic process. Internationally, Trump rejected Iran's proposal, calling it insufficient, and Iran warned of likely renewed conflict. India tested its indigenous disaster alert system, sending a simultaneous notification to millions of phones.