Knock Knock.
Who’s there?
Kingfisher.
Kingfisher who?
King fishing for funds, bailout, restructuring, lucrative air routes… anything will do.

Knock Knock.
Who’s there?
Kudankulam.
Kudankulam who?
Could a nuke lemon be in the making for Prime Minister Manmohan Singh?

Knock Knock.
Who’s there?
Don 2.
Don 2 who?
Don’t worry, be happy, last month I made loads of money, next month I’ll make loads more.

These versions by Sunil Rajguru