When I was a child about 40 years ago there was a slogan "हम दो, हमारे दो" which translates to "We are a couple, we will have two children". Then in my teens it turned to "हम दो हमारे एक", ie, "We are a couple, we will have one child". It was on TV, in print ads, on the sides of buses, everywhere. There was also a huge move to make contraception easily available to every woman in the country. Then in the 90s TV was privatized and it all disappeared.