An interesting, albeit super-easy one.
As is evident, this is an advertisement for towels. The brand was Delhi Cloth Mills, the shoot happened in 1973, when the model was only 17 then, and the hoardings were plastered all across Delhi for quite some time in 1974. However, in the ad itself, though her real first name was used, she was stated to be 22 years of age.
Then, in July 1974, the model’s father called up the ad agency and asked them to return all the pictorial and photographic material that they had produced of her. The day after the call, the model’s engagement was announced.
Simple. Tell me how do we know this lady better today.
PS: Although this pic is available through Google Search, I came across it and the pertinent material on a blog called At The Edge.
A full 10 replies, and all correct! This is indeed Maneka Gandhi before marriage, then known by the name Menaka.