Oops, it doesn't look like 'kolo khara day' is a national day..

Other days

boba

Boba Day
bow tie

Bow Tie Day
singles

Singles Day
china

China Day
artists

Artists Day
fiancee

Fiancee Day
kale

Kale Day
boy friend

Boy Friend Day
self care

Self Care Day
cuddle up

Cuddle Up Day