Frozen embryos when used in infertility treatment gives very good result. The cost when you go for such treatment overseas is very less specially in countries like India. Here the doctors are also specialised and have very good experience. When i was looking out for the clinics i found the following site very informative which may help you all a lot.
Infertility Fertility & IVF Clinic for Male Female & Infertility Clinic & surrogacy in india