Though several areas were inundated in last week's heavy rains, people still managed to post messages seeking help or sharing information about those ready to offer help.

A Twitter user, Shreyasi Ghosh took to the social media to seek help for a pregnant woman in heavily waterlogged Mudichur near Tambaram. "VERY URGENT. PREGNANT LADY IN LABOUR PAINS. NEED VOLUNTEERS. PLEASE RT.#ChennaiRainsHelp," Shreyasi tweeted.

The message saw immediate reactions as offers for help poured in and the woman was transported to a hospital. The news of her having delivered a healthy baby boy was also posted on sites.

The networks also came in handy for those in low lying areas who sought help from government officials and volunteers. "@ChennaiCares These are basic necessities essential and medical that are required immediately.#ChennaiRainsHelp," another user wrote, sharing details about essential items.

Users also shared details about availability of milk, water, clothes and towels on social networking sites.