<ul><li>N Valarmathi, the iconic voice behind ISRO's rocket countdown launches, passed away at the age of 64 in Chennai, Tamil Nadu, due to a heart attack on September 3.</li><li>She was well-known for announcing countdowns for ISRO's missions, with Chandrayaan-3 being her final announcement in July.</li><li>The scientific community and the public expressed their sadness and paid tributes to her on social media, acknowledging her contribution to ISRO.</li></ul>

Isro scientist, the voice behind Chandrayaan-3 launch countdown, passes away

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