I looked from your Bio screen, that you live
in India. If your Mom is there , too, The Sovaldi should start being available there shortly as Gilead has worked out a deal with a number of Countries to provide the Sovaldi, in generic form, for a reasonable cost (one we here in the US sre not allowed to purchase). So, if it is not available now, it should be shortly. You might want to see if her Doctor knows when it is/will be available.