Kaushik/Koushika is a gotra and also surname of Brahmins mainly found in India. There was a Rishi (saint) by the name of "Vishvamitra" literally meaning 'friend of the universe','vishwa' meaning universe and 'mitra' meaning friend. He was also called as Rishi 'Kaushika'.
Name Tushar generally means Frost or Snow or Winter, is of Sanskrit, Indian origin, Name Tushar is a Masculine (or Boy) name. This name is shared across persons, who are either Jain or Hindu by religion.
