neerman - u r getting confused. Visa stamping is done @ Embassy. But after visa, there is another process @ 'Shram Bivag'. I did mine @ Baneshowr. Basically it's a permission from Nepal gov to work outside in another country. This is not absolutely required, But I have heard ppl having issues @ airport for this.

poon-hill, I had the same question few months back and may be you can search my thread. I am going for stamping too soon.
You know the sticker that they put on your passport doesn't have any expire date. So basically it should be valid, I think. The insurance that you took becuase it was a requiremnet to get that sticker expired in a year. SO i Guess life -insurance is not what they check @ airport if they do.
I am planning not to go through hassel this time, becuase I have alreday asked permission to work abroad, and if ppl give me issues @ airport I am going to say that I have not cahnged my country of work abroad andits the same job.
Hope this helps..