Dont you have MoneyGram where you live? Also you can send unlimited money from banks from 40 dollars per transcation.

1. You can wire transfer the money by creating a new a/c in your BoA a/c. Check your BoA for more details.
2. BoA carges $40/45 per transaction. This service is better if you are sending huge fat money at a single shot. Its easy:
   2a. Get Swift Code/ Routing Number of the Bank.
   2b. Checking Acoount ( A/c) Number or Saving A/c Number ( this is where the transferred money will go).
   

NOTE:
- WesternUnion Sucks if you have to send money more than $2000 or $2500. They will ask you whole bunch of question, have to appear for telephonic interview and justify your transaction: For ex: last 3 bank statement, purpose of sending etc

- There was similar thread earlier but no concrete solution.
http://sajha.com/sajha/html/index.cfm?threadid=94706

 depends on where u r
If u r in NYC try Prabhu money transfer...

 thanx......I think the BOA idea is good one. I will try it...

 I think wire transfer is probably the best way if it is more than few K since we get higher exchange rate through the receiving bank in nepal (depends sometimes but most banks in nepal give average between buying and selling). I have used this in the past.

I'm just curious does anyone know if there is any problem later, sending large amounts (even collectively during a year)......  I mean any extra taxes or fine or requiring any clarification etc......

Thanks