1- Bogi pongal - burn and get rid of old things. 2 - Thai pongal - thanksgiving/ worshipping Sun god. 3 - Mattu pongal - Thanksgiving/ worshipping Cattle, esp Cow. 4 . Kanum pongal - Go and seeing relatives, friends and exchange gifts. From 14th to 17th Jan 2020. 1- Bogi pongal - burn and get rid of old things. 2 - Thai pongal - thanksgiving/ worshipping Sun god. 3 - Mattu pongal - Thanksgiving/ worshipping Cattle, esp Cow. 4 . Kanum pongal - Go and seeing relatives, friends and exchange gifts.