I just looked this up on the Wikipedia, and way at the bottom under "external links" are links to Indian government sites in English. The failure rate is 1 to 2%, according to my reading, and children thus born hit their milestones.
I have never had probs with the Pill, in fact I took it as relief from crazy debilitating cramps that happened when I just let my body do its thing, but this is really interesting! I am going to ask my gyno about this, even if I do not need it (hubby got the snip after our four kids) - perhaps one of my daughters will! (All my kids are girls)
I have a mantra that I have spouted for years... "If I eat right, I feel right. If I feel right, I exercise right. If I exercise right, I think right. If I think right, I eat right..." Phil-SC