HOW DO I GET MONEY TO NEPAL?

Western Union won't EXCEPT OR ACCEPT? Accept is take, except means only $2000 will be taken, considering your context. If you mean they won't ACCEPT a $2000 wire, then try a bank to bank transfer. Your bank will need a SWIFT number for the Nepalese bank. I had such experience trying to send cash to Russia. 1990s were quite electronic, but there can still be glitches.

Jesus is right on the phone transfer also. Zelle is another internet transfer site which eliminates a middleman like Western Union.

When i will go to nepal and works there then i will get money.

I will bet they would ACCEPT 2 $1000.00 EXCEPT if they were sent at the same time.

Send the money in smaller amounts. 

Have the person go on their Android phone and they're going to need a debit card. Then have them download the cash app. Or PayPal and you make the deposit through either PayPal or the cash app and it will appear on their end on their cash app or their PayPal app then they can transfer their money to their bank account or their debit card that they have links with their app

International Bank Transfer, maybe, or send in smaller amounts.