As heavy rains lashed Chennai, it reminded everyone of havoc caused by the 2015 floods. The submerged regions now a result of the 'heaviest rainfall in over a century'. At such times, twitter helped in many ways. Tamil Nadu State Disaster Management Agency's official handle assured that govt machinery is working round the clock to help citizens and shared the helpline numbers.

There were Twitter users who shared their own numbers to help people stranded around their vicinity.

There have been constant updates from Chennai Weather, Chennai Rains among others offering constant updates about rains. They also asked users to not spread unconfirmed news or rumours.