Angarki Sankashti Chaturthi celebrates Sankashti Chaturthi, the fourth day in the lunar month of the Hindu calendar. This year, it falls on Tuesday September 17. On this day, people observe fasts for Lord Ganesha. Angarki Chaturthi is also celebrated by sending wishes, greetings and WhatsApp stickers to each other. Here are some good ones you can share with your family and friends.