Who told you that your RP and ticket was QR2000 only?? How did you calculate it???
Government fee of RP for 1 year is QR1600 (300- work visa, 100 – labour stamp, 100 – medical commission, 1100 – RP). So the rest is QR 400. Well, I don’t think, that to bring you here from India and to send back there costs only QR400.. It is at least about 3200-3500, may be even more. So your employer is rather loyal to you. They don’t count the expenses for your recruitment, which could be pretty much high as well…
Be happy it’s only 5000, pay it and go back to your parents.