Pongal is an important festival celebrated in and around Tamil Nadu. It is a four-day festival. Pongal is a harvest festival and it celebrates new crops. Pongal is not a simple harvest festival, it is ...

Amanda Smith is a freelance journalist and writer. She reports on culture, society, human interest and technology. Her stories hold a mirror to society, reflecting both its malaise and its beauty.

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I will quote a lot of times from this official document, see the full document here: https://developer.android.com/develop/connectivity/nfc/hce This app explains how ...