yes thats right but some networks pay very poorly for india traffic and some are almost negligible. I know offline companies who work with google and yahoo and they are raking in millions . Indian companies are spending millions of $ on online ads every month but i guess most of them goes to adwords and yahoo . but some networks use yahoo and google ads also bt they still pay less
I actually have not sufficient knowledge about both publishers, but after read above reviews its better deal to choose edomz rather than others.