From the article at blog.com.np:

"Some Nepali people think the current national flag of Nepal, triangular
and only such in the world, needs to be changed while others think it’s
unique and it’s okay. UWB received an article by Prakash Bom about the necessity of the new flag and a photo of “a model flag for the People’s Republic of Nepal” from Shree Shrestha."

In other words,
It's nothing official. It's an opinion piece by a Prakash Bom guy, and a "model flag" suggested by Shree Shrestha!

I
don't understand why the flag is an issue though. We have a thousand
different problems plaguing our nation, and the national flag is the
least of them. In fact, the flag never really was a problem. Leave it
up to people with nothing better to do to come up with these ridiculous
ideas. Why not go ahead and destroy the Durbar Squares, temples that
were built by monarchs in "old" Nepal.
These
folks are acting like they just acquired a new country and are going to
restructure it from scratch. But the actual problems that need to be
fixed are too big and difficult, so they focus on the only area they
think they can improve: names, logos, anthems. They can then pretend
like Nepal has changed.

That which we call a rose by any other name would smell just as sweet.
The country we call Nepal by any other name would be just as corrupted inside!

You get the point...