I understand, the Oanda page is a bit funny.
Try this link
http://www.oanda.com/currency/classic-converter
That link will give you exactly what you want.
With the conversions you showed, I can still work it out to give you exactly the same amount on the link I gave you.
Let me know if you require any more help.
In addition, I have read on some other posts that you may need to include a letter from your employer that states that you were actually in India when the job was done so that UKBA actually applies the uplift ratio.
I don't know for sure, but probably a letter like this can greatly help your application and clear any ambiguity.