Communicating on WhatsApp is not necessarily in English. With Hindi, Marathi fonts also available on smartphones, users express themselves freely.

Sonu Srivastav, a media professional, said school friends' groups bring back old memories and renew bonding."I had been in touch only with the group admin and after being part of the group, I came in contact with other classmates with whom I did not connect for a long time. Now, through Whatsapp, we plan get-togethers, go for picnics etc. We remember how we fought and made up or how we would not talk to some saying he or she was too much of a scholar or a dumbo," he said.

Homemaker Neena Kamat, who is part of her schoolmates' group said that most innocent and lasting friendships are formed while in school.

After a reunion to celebrate 25 years of passing out of school, the idea of using the WhatsApp messenger to stay in touch came up, she said.

"Not everyone on the group connects. After reconnecting, Some people like to make friends or like to connect or adjust on groups, provided they do not take things personally. Not everyone can do that and too much of messaging can hamper relations as space too is needed for a relation to blossom. Heart-to-heart connection is more important in friendship," she said.

"I was in touch with many of my friends first through letters or cards and then through e-mails. Now, through Whatsapp and phone, I contact whoever possible atleast to wish on birthdays," she said.

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