Personally, if I were in their shoes, I'd demand reparations (a Settler from each CoW member, maybe?) and march north if I didn't get them. The balance of power is currently drastically in India's favor, so even with the Praets they should be able to raze at at least a couple Greek cities.
Finish the job with Knights, sure, but why give up the current window to dish out some major damage?
Finish the job with Knights, sure, but why give up the current window to dish out some major damage?