Oops, it doesn't look like 'library in kolkata on day' is a national day..

Other days

promposal

Promposal Day
eat what you want

Eat What You Want Day
coffee

Coffee Day
brow

Brow Day
self care

Self Care Day
fiancee

Fiancee Day
pick me

Pick Me Day
one

One Day
book

Book Day
artists

Artists Day