wanted 800mah 2 cell lipo for less 

If you wish to go for 2200mah 2s lipo, i have one.

what is the meaning of less.

if you have a budget then specify...

All of us will have some used spare 800mah, which would have lost some of its capacity. by now

Less means 400 / 450 .

it should be almost 70~80%
but current is expected to be at the original rated only.

Does 400/450 means your budget in rupees or the mah rating,
Anyways, you can do a search online and can get a new 900mah at 450rs. and 500mah at 400rs.